Bottom Line

The CamelBak HAWG Pro 20 100 oz excels in its compact, well-organized design, offering ample storage and hydration for day hikes, short bike rides, and outdoor adventures. The 100 oz hydration bladder is easy to fill and offers convenient access through the side-entry system, with a magnetic hose clip to keep everything in place. The pack’s durable fabric and breathable back panel ensure comfort and resilience during your activities. However, it lacks an adjustable frame and has minimal shoulder strap padding, which can affect comfort with heavier loads. Additionally, the zippers aren’t fully waterproof, and the top pocket is somewhat shallow for bulky items.

For those seeking a practical, durable pack for short day trips or light gear, the HAWG Pro provides excellent value. Although it may not be the best choice for ultra light objectives, it’s a great fit for hikers and cyclists who prioritize organization and hydration. For other lightweight options, consider our list of the best hydration packs.

How We Tested

We took the pack out on a winter hike by Mount Rainier to test for comfort and fit for all the essentials. We tested ease of use for the hydration system and used artificial rain to evaluate waterproofness. We also assessed the effectiveness of the pack itself for carrying snacks, gear, and other items for hiking.

Comfort & Fit

Comfort-wise, the HAWG Pro 20 is well-suited for moderate day trips. The padded hip belt helped distribute weight, but we found the shoulder straps weren’t as supportive as we preferred. Additionally, there’s no adjustable frame or torso fit, which made it more difficult to size to smaller body shapes. However, we still felt that the structure of the pack and base weight allowed for a relatively comfortable fit without perfect sizing. The back panel is breathable and comfortable, allowing the pack to sit slightly off our bodies, reducing trapped heat as we hiked under the sun. The pack was comfortable enough for our shorter test hike, but the lack of adjustable straps may be an issue if you need a precise or carry heavy loads for extended periods.

Hydration System

The hydration system in the HAWG Pro 20 is user-friendly and practical. The bladder was easy to fill thanks to its large opening, and the pan handle allowed for a secure grip when we refilled it. The handle felt clunky and large for our small hands but served its purpose. The pack is unique with its side entry bladder compartment, so the hose is already positioned over the shoulder once zipped up. However, the side-entry was more difficult to get the bladder itself into the pack. In general, we preferred top loading bladder compartments to this one. The magnet for attaching the hose is decent. But in practice, it was annoying when it got knocked out one too many times. The pack also lacks a bladder hook, but the side-entry system reduces the need for one. It’s a creative system overall -one that’s fairly easy to use despite a couple potential improvements.

Compartments

With a 20L capacity for hydration and gear, this pack offers plenty of organization. It features a small top pocket for quick access to essentials. It’s not very deep but great for snacks. The main compartment is very roomy and deep – great for narrow items (rather than bulky Nalgenes) and jackets. We were thrilled with the multiple internal pockets—along with a tool roll— which ensured that everything has its place. The hip pockets are excellent for storing snacks and our phone. The key hook is hidden in an internal mesh pocket, which makes it very secure. There are plenty of organized pockets, and we liked how the compartments could open up fully, making it easy to find everything we packed for the day. 

When the bladder is full, the pack feels cramped, making it harder to store larger items.  Overall, though, the CamelBak HAWG Pro 20 100oz is a great pack for day trips.

Waterproofing

The HAWG Pro 20 performed decently in terms of waterproofing. We subjected it to a simulated rainstorm by placing it under a shower faucet for 30 seconds. After that period of time, we could see that the fabric itself is water-resistant, providing good protection against light rain. However, the zippers weren’t fully waterproof, and we found water seeping through the zipper seams. While this pack is fine for the light Washington rain, consider using a pack cover for any hike involving heavier rainfall.

Durability

Durability is a standout feature of the HAWG Pro 20. The materials felt like they were designed to withstand harsh conditions, including exposure to the elements. The fabric of the pack did not snag against rocks on our 6-mile test hike. The zippers are smooth to use and didn’t get caught on themselves. Although the main fabric holds up well, the shoulder straps and hip belt were not as durable because they’re made of mesh material. We can envision the mesh straps may not hold up as long as the main pack material  over extended time and usage. Still, the overall build is solid, and it can endure extended use in a variety of conditions.

Weight

The CamelBak HAWG Pro 20 strikes a good balance between weight and capacity. While it is not the lightest option, it remains fairly slim and compact for a 17L pack. It weighs heavier than our favorite Gregory packs but lighter than the Osprey Mira/Mantra. When loaded for our day hike, the pack distributed the weight well across our body, which made the base weight of the pack feel more manageable. However, it’s still a bit heavier than minimalist packs with its many organization pockets. The HAWG is better suited for those who need a more substantial carrying capacity for their adventures.

Should You Buy the CamelBak HAWG 20 Hydration Pack?

The CamelBak HAWG Pro 20 Hydration Pack offers great organization, a functional hydration system, and solid durability, making it a reliable choice for short day hikes, biking trips, or outdoor activities. Even though it’s slightly heavier than minimalist packs and lacks some features like adjustable straps, its comfort and organizational design make it ideal for those needing a compact yet spacious pack. The hydration system is one of the strongest points, though the magnet and hose handling could use improvement. It’s a good value for those looking for a day pack that offers substantial storage, organized compartments, and an easy-to-use hydration system. However, it might not be the best for those needing a pack for long, heavy-duty hikes. If you’re after a reliable, well-organized hydration pack, the HAWG Pro 20 is a solid option for everyday adventures.

What Other Hydration Packs Should You Consider?

If the CamelBak HAWG Pro 20 is not exactly what you’re looking for, here are some similar options amongst our best hydration packs:

CamelBak M.U.L.E.® 12 Review: The M.U.L.E. 12 is a more compact, lightweight version of the CamelBak HAWG Pro 20 100 oz that excels at carrying small loads while maintaining a close, comfortable fit. With a reliable hydration system and numerous easy-access compartments, it’s a great choice for short to medium-day hikes.

Osprey Mira/Mantra 22/24 Review: The Osprey Mira/Mantra 22/24 offers superior comfort with its adjustable torso length and slim profile, making it a great choice for longer treks. It has more volume with a similar amount of organization as the CamelBak HAWG Pro 20 100 oz.

Gregory Juno/Citro 24 H2O Review: The Gregory Juno/Citro 24 H2O is an all around great pack for long day hikes with just enough internal organization and plenty of space to stow away any items necessary for your adventure. It is comfortable and more adjustable than the CamelBak HAWG Pro 20 100 oz..

Bottom Line

The CamelBak M.U.L.E. 12 Hydration Pack (men’s / women’s) excels in its lightweight design, offering an efficient, compact solution for short hikes or active adventures. Its hydration system is user-friendly, with a large mouth for easy filling and a secure hose reattachment. However, the short handle makes it harder to fill the bladder. Also, there isn’t a hook to hang the bladder inside the pack, so it sloshes around the pack. Additionally, the magnet for the hose tip gets easily knocked off.

The pack’s top pocket is deep and well-placed for easy access to small items, and its durable fabric ensures long-lasting use in moderate conditions. It also offers good weight distribution, keeping the load close to the body. If carrying lighter loads, this pack is great. However, with heavier loads, the hip belt isn’t supportive since it’s only a strap. The shoulder padding is also minimal, which can reduce comfort over a longer hike.For those seeking a lightweight, efficient pack for short, fast-paced adventures, the M.U.L.E. 12 offers great value but may not be the best choice for extended trips or heavy-weight use. If you’re seeking a pack with larger volume, check out one of our top rated hydration packs.

How We Tested

We took the pack out on a 7 mile winter hike up to Source Lake at Washington’s Snoqualmie Pass to test for comfort and ease of use for the hydration system. We tested water resistance using a showerhead and also assessed how effectively the pack carried snacks, gear, and other items for hiking.

Comfort & Fit

The M.U.L.E. 12 offers a comfortable fit, particularly for those focused on light, fast adventures. The shoulder straps feature breathable mesh with minimal padding, which caused discomfort on our test hike. The hip belt provided some support but lacked additional structure, so it didn’t help with weight distribution as much as more robust hydration packs with padded hip belts. Compared to the sturdier HAWG, for example, the M.U.L.E. 12 feels more basic, with less padding and support. The fit is fine for short hikes or quick bike rides, where carrying a heavy load isn’t a priority. However, for extended wear or heavier loads, the lack of a well-supported hip belt and more padded shoulder straps might be uncomfortable. If you’re looking for a pack that prioritizes weight savings over cushioning and support, this will be a good fit.

Hydration System

The hydration system of the CamelBak M.U.L.E. 12 provides excellent performance with some minor drawbacks. We thought the panhandle design was great for easy filling. Although, its ergonomic properties decreased as the bladder started filling up. The handle is short but wide, which makes it hard for smaller hands to hold it securely. The large opening allows for quick refills and is compatible with water filters that fit over Nalgene bottles. The CamelBak system has one of the better user-friendly hose attachments that wasn’t too stiff to take on and off quickly. 

At the same time, we weren’t completely thrilled with the hydration system. This pack does not have an outside pocket for Nalgene bottles – a limitation for users who like to carry both. They fit inside perfectly fine, though. We also found that it was easy to knock off the hose because the magnet is not as strong as it could be. Unlike other packs we tested, there was no bladder hook to keep the reservoir upright inside the pack. The bladder compartment felt like the smallest out of all packs, making it additionally difficult to slide in a full bladder. Overall, it is a good system, but it has a few ergonomic drawbacks.

Compartments

Storage on the M.U.L.E. 12 is surprisingly efficient for its slim profile. The top pocket is so deep and spacious. We found it a perfect place to secure small items, including our snacks, phone, and wallet. Plus, it’s located close to the back of the pack (as opposed to on the outer side), so items don’t easily fall out when opening the main compartments. The main storage area was deep and roomy enough for a jacket or maybe the 10 essentials. We also liked how Camelback separated it from the hydration bladder to keep everything more organized. The secondary main pocket let us store small items in the little pocket compartments, such as a quick snack or sunscreen.  

The pack’s smaller size may limit capacity for users who want to carry extra gear. But for those focused on minimalism, the M.U.L.E. 12 offers a solid organizational layout that keeps everything secure and easy to access.

Waterproofing

Although the CamelBak M.U.L.E. 12 does a good job of offering some protection against light rain, it’s not fully waterproof. We tested the pack under a simulated rain storm by placing it under a shower faucet for 30 seconds. Where the hose exits the pack, water seeped through the hole and into the hydration compartment. Additionally, water seeped through the zippers, so we do not believe it is ideal in extreme weather conditions without extra protection. The outer mesh compartment can also trap water, which could affect any items stored in it during wet conditions. 

For light rain or quick showers, the M.U.L.E. 12 provides reasonable protection, but it’s not built for heavy exposure. If you expect to face heavy rain on your adventures, you may want to consider a rain cover or use dry bags for your valuables.

Durability

The M.U.L.E. 12 is constructed from thick but lightweight fabric, ensuring it holds up well under regular use. The durable fabric resisted abrasions and tears when we tried to scratch it up on rocky terrain, making it suitable for most outdoor activities. The mesh shoulder straps and hip belt, however, did not feel as durable as the rest of the pack, especially if subjected to heavy loads or rough conditions. We preferred the Gregory 420D nylon to the sustainable nylon of the CamelBak M.U.L.E. 12. However, it should hold up well for the active adventurer looking for a lightweight, minimalistic pack.

Weight

The M.U.L.E. 12 stands out for its super slim and lightweight design, making it a great choice for those looking to carry small loads. Weighing in at just 20 ounces for the Women’s pack and 28 oz for the Men’s, it keeps the overall weight low while offering sufficient capacity for hydration and the essentials for your hike. The pack keeps the weight close to the body, offering a snug, stable fit that won’t bounce around during physical activities. It’s an ideal option for short trips where you don’t need to carry a lot of gear. 

Though it excels in weight efficiency, the small, 12L capacity might be limiting for users who need to carry more than just the basics. It’s not designed for heavy loads. It’s better suited for those who prioritize lightweight, day-use gear over carrying extensive equipment.

Should You Buy the CamelBak MULE 12 Hydration Pack?

The CamelBak M.U.L.E. 12 Hydration Pack is an excellent choice for those who prioritize a lightweight, slim profile and efficient hydration during moderately active outings. It excels in its hydration system, compact compartments, and minimalist design, making it a great option for mountain biking, day hikes, or quick adventures. It particularly excels in the many internal compartments for easy organization. Though it may not be the most comfortable option for carrying heavier loads, it works well for those on a simple day trip in fair weather conditions.

What Other Hydration Packs Should You Consider?

If you’re looking for something different, consider the following options among the best hydration packs we’ve reviewed:

CamelBak HAWG Pro 20 Review: If you need more gear storage and a slightly larger hydration capacity, the CamelBak HAWG Pro 20 is a better option. With a spacious interior, multiple compartments, and robust design, it offers extra room for carrying gear on longer adventures while maintaining a close, stable fit.

Gregory Swift 16 / Inertia 18 H2O Review: For those seeking a lighter, more compact hydration pack with exceptional comfort, the Gregory Swift 16 or Inertia 18 H2O is a solid choice. These packs offer an efficient design for shorter hikes, with minimal weight and an ergonomic fit – and one of the best hydration bladders on the market.

Teton Oasis 18 Review: If you’re looking for a hydration pack with plenty of organization and a bit of extra storage at a budget price, the Teton Oasis 18L is a good pick. It’s slightly bulkier than the M.U.L.E. 12, but it still provides excellent capacity, a well-designed hydration system, and a durable build for day-long excursions.

Bottom Line

The Deuter Speed Lite 13 excels in providing a lightweight and compact design, making it ideal for short hiking, running, or biking where minimal gear is needed. Its slim profile and breathable mesh back panel keep you cool and comfortable during light activities. The deep top pocket with a key hook offers easy access to small essentials, and the main fabric feels durable enough for regular use. 

However, the pack’s minimalist design comes with limitations, including a lack of internal organization and small side pockets that can’t accommodate larger water bottles. The absence of a hydration bladder and a rain cover is also a drawback for users who need these features for more versatile outdoor activities. Although the pack’s lack of hip support and thin shoulder straps may not suit heavier loads, it remains a solid option for those seeking a budget-friendly, lightweight pack for short adventures and is high on our list for best budget hydration packs. Overall, it’s a good value for casual day trips but not for those needing advanced features or heavy-duty durability.

How We Tested

We took the pack out on a 6 mile winter hike around Discovery Park, a local Seattle city park, to test for comfort and assess how effectively the pack carried our snacks and hiking gear. We tested ease of use for the hydration system and used a shower to test its weather resistance.

Comfort & Fit

The Deuter Speed Lite 13 prioritizes comfort and fit, but like many ultralight packs, it lacks back support. We loved how the pack was minimalist. The shoulder straps are thin and lightweight, which kept the pack comfortable during our hike and would be great for short duration activities. We only carried 1L of water, a light jacket and a handful of snacks and felt that the fit was snug and stable. The pack remained comfortable over the whole hike. However, it lacked a hip belt or any substantial frame, which meant that we felt the weight mostly on our shoulders. This pack is not suitable and would become uncomfortable for longer hikes or more substantial loads. The pack is limited in its adjustability, though it still fits shorter torsos. The chest and hip straps are fairly adjustable for most body types. Overall for its purpose of a short neighborhood walk, the Deuter Speed Lite 13 is perfect, but consider a more substantially built pack for longer treks.

Hydration System

One of the major downsides of the Deuter Speed Lite 13 is its hydration system. Unlike many hydration packs, the Speed Lite 13 does not come with an included bladder, which means you’ll need to purchase one separately if you want to take advantage of the hydration compartment. We found the velcro top used to attach the bladder inside the pack a bit awkward and it was challenging to secure the bladder tightly to be hung within the pack. Additionally, the side pocket is not designed to fit larger water bottles, so we ended up stowing a bottle inside. While the pack is compatible with Deuter’s Streamer hydration systems, it still feels like an afterthought. The lack of a magnetic clip for the hose is also a notable absence, making it harder for us to keep the drinking tube in place while moving. If you’re in need of a more user-friendly hydration system, the Speed Lite 13 may leave you wanting more.

Compartments

In terms of compartments, the Deuter Speed Lite 13 is a minimalist’s dream—simple and no-frills. The pack features one main compartment, which was spacious enough for us to put in a hydration reservoir, light jacket, and a few small items like snacks. We loved the deep top pocket, perfect for storing our keys, snacks and phone. The key hook in the top pocket is a nice touch, ensuring keys don’t get lost or jumbled with the rest of our gear. However, when it comes to organization, the pack falls short. There are only two zippered compartments (the main and top pouch) and it feels disorganized. Additionally, the side pocket was too small and tight for larger items like Nalgene bottles. For its intended purpose of a short walk, this pack still fits the bill, but look elsewhere for a large pack with more compartments for longer hikes.

Waterproofing

The Deuter Speed Lite 13 provides some protection against light rain, but it is not truly waterproof. After subjecting it to a rain test, consisting of a 30 second bathroom shower,  it was clear that water quickly seeps through the zippers and seams. While the pack’s material is somewhat water-resistant, it was clearly not waterproof. The pack was wet inside after 30 seconds of simulated heavy rainfall and we concluded that it would be a poor pick for rainy hikes. For those looking to use this pack in more unpredictable weather, it’s worth noting that the Speed Lite 13 does not come with a rain cover. Overall, the pack is fine for casual use in light rain at the end of a hike, but not a fully waterproof solution for moderate to extreme weather.

Durability

The Deuter Speed Lite 13 is built with relatively durable materials that hold up well under normal use. The main fabric felt weaker than other packs we tested, using 140D polyester vs 410D nylon. While the pack held up to our hiking usage and rough rocky terrain, we do not believe that it would handle more rough situations like other packs. Also, the mesh shoulder straps and hip belt will not be as long-lasting as the main fabric of the pack, made of 100D polyester. The mesh, while breathable and comfortable, could show signs of wear faster if subjected to heavy use or abrasive conditions. Despite this, the main body of the pack is expected to stand up to extended mild use. The zippers were a highlight of the pack’s durability and felt resistant to wear and tear. The zippers did not snag when we moved them quickly. For those who will be using the pack for short hikes, cycling, or running, the Speed Lite 13 offers a high level of durability, but for more frequent and rugged use, expect the mesh components to wear out quicker over time.

Weight

The Deuter Speed Lite 13 is exceptionally light, weighing in at just 13.1 oz, less than a pound. This makes it an excellent choice for minimalist hikers, runners, or cyclists who prefer not to be weighed down by heavy gear. We loved how simple the pack was for casual walks. The bladder insert compartment that allowed weight to be distributed properly when we tried hiking with an additional hydration bladder (the Deuter Speed Lite 13 does not come with its own bladder). Unlike some heavier packs that might sway or pull on your shoulders, the Speed Lite 13 keeps the load close to the body, which enhances your mobility. Whether you’re taking a brisk hike or navigating technical terrain, this pack feels compact and stable. The streamlined design reduces bulk and is designed to minimize fatigue, even during longer outings. While it lacks a full-frame system for added support, its lightweight design is perfect for those looking for a super-light, agile pack for shorter hikes or activities.

Should You Buy the Deuter Speed Lite 13 Hydration Pack?

The Deuter Speed Lite 13 is a great choice for anyone seeking the ultimate lightweight, minimalist hydration pack for short outdoor adventures. It stands out for its ultra-light design, comfortable fit, and compact size. However, it is limited by its lack of compartments, hydration bladder, and partial water resistance. The lack of a hip belt and thin shoulder straps make it more suited for short, light trips, rather than longer hikes with heavier loads. Its hydration system could be better if a bladder was included, although the hydration system seems more of an afterthought. If you’re after a no-frills pack for quick outings where weight is the priority, the Speed Lite 13 delivers. But if you need more storage options or a robust hydration system, this pack might not be the best fit.

What Other Hydration Packs Should You Consider?

If you’re not feeling the Deuter Speed Lite 13, look at some of our other recommendations from our full list of the best hydration packs of 2025.

CamelBak M.U.L.E. 12 Hydration Pack: The CamelBak M.U.L.E.® 12 is a great choice for those who prioritize a compact design and easy access to hydration. It offers more gear capacity and organizational options compared to the Deuter Speed Lite 13.

Gregory Swift 16 / Inertia 18 H2O: The Gregory Swift 16 or Inertia 18 H2O provides superior comfort and support, especially for longer hikes. Unlike the Deuter Speed Lite 13, this pack offers more support with the frame and increased volume for gear capacity.

Osprey Dyna/Duro 15L: For trail runners or active users, the Osprey Dyna/Duro 15L provides a close, stable fit, while the Deuter Speed Lite 13 is minimalist and lacks the same ergonomic design.

Bottom Line

The Gregory Juno 24 Hydration Pack excels in comfort, fit, and hydration performance, making it an excellent choice for day hikers, trail runners, and outdoor enthusiasts.

Its lightweight build, breathable back panel, and adjustable shoulder straps ensure a comfortable fit, even when fully loaded. The pack’s hydration system is user-friendly, featuring a leak-proof bladder and a strong magnet clip that keeps the hose in place. The ample storage, including deep hip pockets and a keychain hook, allows for easy access to essentials like snacks, phones, and small gear. However, the pack may not suit those needing extensive storage or a more customizable fit as its single size might not accommodate all body types comfortably. Additionally, the outer mesh material could wear down over time with heavy use.

Overall, the Juno 24 provides excellent value for anyone seeking a reliable, lightweight hydration pack for short outdoor adventures and moderate hikes. That’s why it’s our top pick for the best hydration packs of 2025.

How We Tested

We took the pack out on a 6-mile winter hike to Skyline Lake by Washington’s Stevens Pass to test for comfort and assess how well it carried our snacks, gear, and other items for hiking. We also evaluated the ease of use of the hydration system and tested the pack’s waterproofing under simulated rain.

Comfort & Fit

The Gregory Juno 24 H2O is built for comfort with padded shoulder straps and a soft, breathable back panel. The fit is generally good, but it is important to note that the pack is designed as one-size-fits-all. Even so, there is some amount of adjustability with the shoulder straps, allowing more leeway for larger or smaller built bodies. 

It took some effort to fit the pack correctly but once sized right, we felt that the pack sat snuggly against our bodies. The back panel is designed with a breathable mesh that helps reduce heat buildup and potential sweat, which was important as we tested this out in our winter gear. The hip belt was supportive, designed to be soft and cushioned. We found both of those features useful on our 8-hour hike into the backcountry. We carried 10 pounds of extra layers and winter gear, but the weight wasn’t an issue since the padded shoulder straps kept us comfortable. Individual fit and comfort preferences may vary, but this pack works well for a wide range of hikers.

Hydration System

The Gregory Juno 24 H2O comes equipped with a 3L hydration bladder that is easy to fill and use, making it a standout feature. The bladder has a large opening that allows for quick and simple refills, and its design helps prevent leaks. The handle is slip proof, though not as ergonomic as other bladders with a panhandle, such as the 2L version. When we were hiking, the bladder’s magnetic clip securely held the hose in place and out of the way, which made hydration on the go easy and convenient. The bladder can easily slide into the pack’s designated sleeve prior to loading the pack, but we found it difficult to slide the full 3L bladder back into the loaded pack during our test hike. Although the June 24 has a side exterior pocket, it was too stiff to  hold a normal 1L Nalgene bottle. We found it better to stow it inside the pack.

Compartments

The Gregory Juno 24 H2O shines in organization with its variety of compartments, making it ideal for short hikes or day trips. For our winter hike, the main compartment offered enough space for a hydration bladder, extra winter clothing, and snacks. We loved how there was a separate sleeve to keep the bladder secure and out of the way from accessing our essentials. The hip belt pocket was deep enough to store our phone and snacks while still giving us quick access to them as we navigated the trail. The internal organization includes mesh pockets, though these can feel a bit tight when overstuffed, so we ended up not using it. The small top pocket was great to hold small items, but its limited size meant we had to pick and choose what items to place. We eventually only used it to fit a bar and keys and used the key clip inside to ensure safety from losing the keys during the hike. 

Hikers who need extra storage space or more versatile compartments might find the Juno limiting, but we found the internal storage sufficient for day hikes. Overall, the Juno 24 H2O offers great organization for longer day trips.

Waterproofing

The Gregory Juno 24 H2O offers reasonable water resistance. Since Washington rarely has heavy rain days, we decided to simulate a heavier rainstorm by testing the pack’s durability under a shower faucet for 30 seconds. Over the first few seconds, the pack handled it without issues. The zippers have their own cover, which allows water to slip off the pack instead of seeping through the zipper like many other packs. Likewise, water didn’t easily seep through the hydration hose hole of the pack. After the full 30 seconds, the uncovered zippers did allow water to drip through over time, so a pack cover might be useful in wet conditions to protect your pack contents.

Durability

The Gregory Juno 24 H2O is built to last, with durable fabrics and strong zippers that hold up well to regular use. The main compartments feature tough, abrasion-resistant material that can withstand the rigors of day hiking and outdoor adventures. On our test outing, we did not see any glaring issues with the main body fabric. It never snagged, and any dirt slid off easily. Additionally, the zippers were smooth and easy to use, even when the pack was loaded to capacity. 

However, the mesh material did not feel as durable as the main body material, making it more susceptible to snagging. Similar to many packs, the Juno’s outer mesh could tear over time under heavy use or exposure to rough environments. Otherwise, the Gregory Juno 24 H2O performed well for our winter hike. The stitching and overall construction felt robust enough for years of use. Overall, the Juno 24 H2O is durable enough for typical outdoor activities.

Weight

The Gregory Juno 24 H2O is a relatively lightweight hydration pack, especially for a 24L daypack, weighing just 1.9 lbs (875g). Other packs we tested with 20+ L volume weighed over 2 pounds by comparison. When packed, the Juno 24 H2O distributed weight effectively across the shoulders and hips, reducing strain during our hike. Despite its slim profile, it carried a significant amount of gear for a winter hike in the Cascades, including snacks, multiple extra layers, and a hydration bladder. The load always felt balanced and close to our body, keeping us comfortable on longer hikes. This pack feels sturdy for carrying heavy loads and will carry all the essentials – even for winter hikes when you might bring a few more items to stay warm.

Should You Buy the Gregory Juno/Citro 24 Pack?

The Gregory Juno 24 H2O Hydration Pack is ideal for day hikers, trail runners, and outdoor enthusiasts who need a lightweight, functional, and comfortable pack for short trips. It is extremely comfortable to wear all day. It excels for those seeking a hydration solution with great organization, including easy access to essentials like snacks, phone, and water. Its well-designed hydration system, comfortable fit, and breathable back panel make it a solid choice for moderate hikes, especially in cooler conditions. However, this pack may not be the best option for those needing a highly customizable fit or more storage space for extended trips. Overall, the Juno 24 H2O offers good value for those looking for a reliable hydration pack for day hikes or short excursions.

What Other Hydration Packs Should You Consider?

While the Gregory Juno/Citro 24 H2O is our top pick, you might find something more tailored to your intended use in our complete hydration packs guide:

Osprey Mira/Mantra 22/24 Review: Though the Gregory Juno/Citro 24 H2O excels in comfort and fit, the Osprey Mira/Mantra offers more organization, waterproofing, and support. However, it is heavier for its size.

Gregory Swift 16 / Inertia 18 H2O Review: The Gregory Swift 16 / Inertia 18 H2O offers a more compact design and smaller volume compared to the Gregory Juno/Citro 24 H2O. It has a better hydration bladder for the most ergonomic usage.

CamelBak HAWG Pro 20 100 oz Review: The CamelBak HAWG Pro 20 100 oz offers more internal organization than the Gregory Juno/Citro 24 H2O. However, it’s slimmer and more difficult to add bulkier items to its main compartment.

Bottom Line

The Teton Oasis 18L hydration pack excels in durability and waterproofing, making it a solid choice for short hikes or outdoor activities in various weather conditions. Its thick fabric and strong materials ensure longevity. Plus, the rain cover and waterproof design protect gear from wet conditions. The pack offers good compartmentalization with multiple pockets, though its lack of a hip pocket and somewhat disorganized interior can make it difficult to access smaller items quickly. The hydration bladder is functional but lacks a handle and features a difficult-to-use Velcro attachment, which could be a frustration for some users.

Even though the pack is a bit bulky for its size and feels heavy when loaded, it provides ample space and good comfort for short trips. Its durability and waterproof features add value, but it may not be ideal for users seeking a lightweight or minimalist option. It ranks as a budget option our hydration packs guide. Overall, it’s a great choice for those prioritizing weather resistance and durability over ultra-light design.

How We Tested

We took the pack out on a 5 mile hike at Carkeek Park in Seattle in the winter to test its comfort and carrying capacity. We tested ease of use for the hydration system and evaluated water resistance with a simple shower test.

Comfort & Fit

The Teton Oasis 18L features a breathable back panel, which provides some airflow on short walks. However, the overall comfort is compromised by the pack’s bulky feel. The back was well padded and offered good ventilation, but it felt awkward and thick when we wore it on our hike. The pack was also difficult to size correctly, especially for our smaller torso. The shoulder straps and hip belt are minimally padded, which detracts from its comfort when loaded with heavier gear. 

We felt like the pack was over designed in general with too many buckles to ensure a snug fit. It shifted around during the whole hike. We think that the pack is fine for short hikes or casual use, but it may not be as comfortable for longer treks where stability and precise fit are crucial.

Hydration System

The hydration bladder included with the Teton Oasis 18L leaves much to be desired. It lacks a handle, making it difficult to fill. The bladder itself was very flimsy and did not hold shape like other hydration bladders we tested. The bladder opens at the top instead of a screw up cap, which makes it necessary for us to use both hands to steadily hold the bladder open. 

In addition, the velcro attachment system to hang the bladder felt flimsy and ineffective. It seemed like an afterthought design. The hose connection to the bladder was stiff to use but we liked that there was a clear audible click to ensure proper connection to the bladder. Another drawback is a lack of a hose clip, so we had to tuck the hose away in the sternum strap to keep it from flapping around. 

 Overall, the bladder may work in a pinch, it’s not as intuitive or durable as other hydration systems available. That being said, we loved that there was space to put a Nalgene-sized bottle on the outside side pocket, unlike many of the other packs we tested.

Compartments

The Teton Oasis 18L has a variety of compartments, but its attempt at organization is overdone. Rather than internal pockets, the Teton Oasis 18L primarily keeps organization with 2 smaller exterior pockets and one main compartment. The lack of a dedicated hip pocket made it difficult to access smaller items like keys or a phone on the go. We also did not like how awkwardly the lowest outer pocket is attached. It must be strapped back onto the pack using three buckles to prevent it from flopping open again. The best use of the foldable pocket is for storing a jacket on the outside. Overall, the pack offers plenty of space for gear, but its lack of thoughtful organization makes it difficult to find and access specific items quickly.

Waterproofing

The Teton Oasis 18L does the best out of all packs in terms of waterproofing, especially with its rain cover, which offers great protection for the pack and the hydration system. The cover is stored at the bottom of the pack and is easy to deploy, although the Velcro can make it a bit stiff to remove at first. 

We subjected the pack to a simulated rainstorm by setting it under a shower faucet for 30 seconds. Even when we tested the pack without the rain cover, the Teton Oasis 18L is still very waterproof, with built-in covers for the zippers to allow water to slip off the pack easily. Like most packs, the hydration hose opening easily allows water to seep in, but only to the hydration compartment and not the main bulk of the pack, which is not a big issue. 

Overall, we were very happy with how much waterproof and protection from rain this pack offered. For those who often hike in wet conditions, this pack is a great option.

Durability

The Teton Oasis 18L is made with durable materials that feel robust and long-lasting, ideal for casual hikers and those looking for a pack that can withstand regular use. We felt that while the zippers are sturdy and functional, they were very stiff to use and difficult to pull through the zipper track, especially when navigating curved areas of the pack. The fabric is made of 210D Polyester, which is relatively tough and resistant to wear and tear. However, that’s not nearly as strong as packs like the Gregory Juno/Citro 24 or Gregory Swift 16/Inertia 18. The pack withstood the rocky terrain of Carkeek Park and felt great for a moderate day trip, but given its weight and material construction, it may not be the best choice for ultralight enthusiasts or those who need a pack that can handle more rugged conditions over extended periods.

Weight

The Teton Oasis 18L hydration pack feels somewhat heavy considering its relatively small size. It is nearly a pound heavier than the Gregory Swift 16/Inertia 18. However, its thick fabric gives it a robust, durable feel, and it holds a surprising amount for its volume. We did not like how the pack is wide for its size, which makes weight sit further from the body, feeling much less ergonomic than the Gregory packs. For the first hour of the hike, the pack remained fairly comfortable, but throughout the hike, the added weight became noticeable. If you’re looking for something ultra-lightweight for minimal gear, this might feel a bit bulkier, but for those who prioritize durability and capacity, the weight is acceptable for the value it offers.

Should You Buy the Teton Oasis 18 Hydration Pack?

The Teton Oasis 18L hydration pack is designed for outdoor enthusiasts who value durability, weather resistance, and ample compartmentalization for short hikes or day trips. It is ideal for hikers, bikers, and adventurers who frequently face wet conditions and need reliable waterproofing. The pack’s sturdy build and rain cover make it an excellent choice for those who prioritize weather protection, though it may not be the best fit for ultralight hikers or minimalist users.

While it provides great durability and a solid hydration system, the pack’s bulky design and lack of hip pockets might not appeal to users seeking a streamlined, lightweight option. Those looking for easy organization and water resistance without needing to carry heavy loads will find it beneficial. Overall, it offers good value for individuals who want a versatile, weatherproof hydration pack but may be less suitable for those focused on weight savings or simplicity.

What Other Hydration Packs Should You Consider?

If you’re not sold on this budget hydration pack, consider the packs below or browse all of our top rated hydration packs

Gregory Juno/Citro 24 H2O: The Gregory Juno/Citro 24 H2O is a more comfortable and versatile choice than the Teton Oasis 18L. It offers superior fit, including an adjustable torso length and breathable back panel, making it a better option for longer hikes and a more tailored, all-around comfortable experience.

Deuter Speed Lite 13: Though the Teton Oasis 18L is good for budget-conscious hikers, the Deuter Speed Lite 13 offers similar lightweight performance but in a more compact and less bulky design.

Osprey Dyna/Duro 15L: If you’re looking for a body-hugging fit for running or fast hikes, the Osprey Dyna/Duro 15L outperforms the Teton Oasis. Its form-fitting design ensures the pack stays snug, minimizing bounce and maximizing comfort.

Bottom Line

The Osprey Mira 22 (women’s version) and Manta 24 (men’s version) offer solid performance for day hikes and short outdoor trips, providing a well-balanced mix of comfort, hydration capacity, and durability. The pack excels in weight distribution, keeping the load close to the body, which helps with comfort even when fully loaded. Its adjustable fit and breathable back panel enhance comfort, though it may feel bulky for smaller users or those looking for a minimalist design. The hip pockets are a standout feature, providing easy access to snacks and small essentials. However, the main compartment can be challenging to access when the pack is fully loaded.

The hydration bladder system works well, with a secure hose attachment and easy-to-use closure. Although, some may find the magnet clip weak and difficult to use. It offers good weather resistance with a rain cover, but the pack is not fully waterproof. Those looking for lighter, simpler packs might find it bulky – and be better off with another one of the best hydration packs. Overall, the Osprey Mira 22 provides excellent value for hikers seeking a well-organized, durable, and comfortable daypack.

How We Tested

We took the pack out on a 8 mile hike on the Skyline Trail on Mt. Rainier to test for comfort and evaluate how it carried our snacks and gear. We tested ease of use for the hydration system and used artificial rain to evaluate weather resistance.

Comfort & Fit

Comfort is one of the strong suits of the Osprey Mira 22, thanks to its customizable fit. We found it easy to size the pack to our different body types when we used the shoulder straps and frame adjustment. The shoulder straps and back panel felt breathable, which helped us keep cool during our hike. However, the hip straps, while functional, are a bit awkward if not correctly positioned. We did not find them as comfortable for a smaller body, but with lighter loads, they felt sufficiently comfortable. With a heavier 15 lb winter pack, it caused us some discomfort after extended use. 

The narrow profile of the pack makes it ideal for those who prefer a more compact, close-to-the-body fit. Since the pack is narrow, the bulk of the volume is built vertically, making it cumbersome and tall for shorter users. We liked the ability to use the side compression straps to keep loads closer to our body and the pack more compact. Most packs we tested didn’t have this feature. Overall, the Osprey Mira offers excellent comfort for its size and design, especially for individuals who prioritize breathability and a snug, supportive fit.

Hydration System

The hydration bladder in the Osprey Mira 22 is functional, with a fold-slide closure that makes filling and closing a breeze. The bladder’s size, while adequate for most day hikes (up to 2.5L), was a tight squeeze when we tried to load it while the pack was full. When the pack was empty, the bladder was easy to insert thanks to a hook system. 

We liked the no-slip handle for filling, which was an upgrade from the Osprey Dyna 15L bladder. However, the handle is relatively flimsy compared to the Gregory bladders. It felt less ergonomic to hold for extended periods. Additionally, the top opening can be hard to pry open and keep open, requiring 2 hands to fill the bladder. 

There is a magnet clip for the hose to stow away while hiking, but we found it useless since we constantly accidentally knocked it out of place.  Overall, it’s a reliable system, but could benefit from a few improvements in ease of use.

Compartments

The Osprey Mira 22 excels in organization, offering several functional compartments designed for easy access. We enjoyed the top pouch as it is particularly handy for storing small items like snacks or keys. It’s a bit shallow and things can fall out easier than a deeper pocket, but it still provided a convenient quick-access area. We used the pack’s hip pockets for our phone, allowing for quick navigation on the move. It’s spacious enough for most phones, unlike other packs with smaller hip pockets. 

The main compartment is very roomy for a 22L pack. However, we found that it was a bit of a challenge to access items near the bottom of the pack because it was particularly deep compared to other 20-24L packs. The side pockets were useful and easy to store a Nalgene bottle, but it was not a quick access side pocket. We could not load or unload a bottle without taking off the pack. 

Like many Osprey packs, this one also had a mesh back pocket, which we found ideal for storing wet gear. The interior mesh pockets provide additional organization options. Though the pack feels roomy for its size, accessing certain items in the main compartment could be more efficient.

Waterproofing

The Osprey Mira 22 performs well in wet conditions, thanks to its rain cover and water-resistant fabric. We subjected the pack to a simulated rainstorm by placing it under running water in our shower for over 30 seconds. It survived our rain test, unlike other packs we tested. The exterior mesh pocket allows water to drain off quickly when wet, preventing water from pooling in the pack.

The rain cover is stored conveniently at the bottom of the pack and is easy to deploy when needed. It provided some of the best water protection out of all packs we tested. Without the rain cover, the pack is still very waterproof. The zippers are covered by waterproof flaps, so even if the rain is heavy, the contents of the pack remain dry. It’s a great option for hikers who may encounter unpredictable weather during their day trips, offering a good level of protection without adding too much weight.

Durability

The Osprey Mira 22 is built with durability in mind. The main fabric is thick and tough enough to withstand abrasion and holds up to the 420D nylon standard – just like the Gregory packs. The zippers were durable and easy to use without snagging, so we believe they will hold up well over time. The pack’s structure is a reinforced frame pack which feels more durable to use than frameless packs. However, the outer mesh on the side and the back pocket felt more fragile. It could snag on obstacles next to the trail, so care should be taken when using these areas for storage. For the average hiker, this pack has the perfect amount of durability for day hiking and shorter adventures for many years to come.

Weight

Coming in at over 3 pounds, the Osprey Mirra 22 was the heaviest pack we tested. Other packs with similar volume clock in at 2-3 pounds. We felt like the amount of compartments compromised the overall weight. However, the durable frame provided structure and support, which made the weight distribution feel lighter than expected while hiking. The airy back panel also helped balance the weight, keeping the pack comfortably close to the body but far enough to be breathable. We felt that the design kept the center of gravity aligned with our torso, minimizing the effects of the heavier base weight of the pack. 

However we still found the weight more noticeable by the end of our trek. The Mirra 22 isn’t a good bet for those looking for an ultra-lightweight, minimalistic option. However, for those seeking durability and comfort in a hydration pack with extra storage, it delivers. It’s best suited for day hikes or short treks, where the additional weight can be tolerated for the sake of comfort and convenience.

Should You Buy the Osprey Mira 22 Hydration Pack?

The Osprey Mira 22 Hydration Pack is ideal for day hikers and outdoor enthusiasts seeking a well-organized, comfortable pack for short trips. It’s designed for individuals who prioritize comfort and ease of access to essentials. The adjustable fit, breathable back panel, and compact design make it especially suited for those looking for a hydration pack that balances load distribution without being overly bulky. However, it is a heavier pack for its volume, so it might not be the best choice for those looking for a light weight pack. It is a great choice for those looking for the most organizational structure in a pack with a solid frame for a backpack. Its tall frame makes it more ergonomic for those with longer torsos, although the pack itself is adjustable for most body sizes.

What Other Hydration Packs Should You Consider?

For more options, please browse our full guide to the best hydration packs.

Gregory Juno/Citro 24 H2O: The Gregory Juno/Citro 24 H2O is a better overall choice compared to the Osprey Mira/Manta 22/24. It offers superior comfort since it is lighter and has a more breathable back panel.

CamelBak HAWG Pro 20 100 oz: If you need more organization and a slimmer design, the CamelBak HAWG Pro 20 is a better alternative. It provides efficient storage with multiple compartments while remaining more compact and easier to carry compared to the bulkier Osprey Mira/Manta.

Teton Oasis 18L: For those on a budget, the Teton Oasis 18L is an affordable option compared to the Osprey Mira/Manta. Despite its lower price, it still offers ample hydration and storage space. Though it lacks some of the premium features of higher-end packs, it’s a great choice for shorter hikes.

Bottom Line

The Osprey Dyna 15L excels as a lightweight, well-organized hydration pack ideal for short runs, trail races, or day hikes. It offers a snug, comfortable fit with soft fabrics that hug the body and breathable mesh to keep you cool. The pack’s numerous compartments, including easy-access hip and chest pockets, are great for carrying small essentials like snacks and a phone. The hydration system, with its insulated hose and secure closure, ensures water stays cool and leak-free.

However, the pack has some limitations. Its 15L capacity may not suffice for longer trips or more gear. The bladder is difficult to open, and the lack of a handle makes it cumbersome to fill up. The pack is also not waterproof. Although it’s well-suited for short, light loads, the mesh fabric may not hold up well under heavier loads.

If you’re looking for larger packs, check out our list of recommended hydration packs. If you’re seeking a compact, efficient hydration pack for shorter excursions, the Osprey Dyna 15L is a great value.

How We Tested

We took the pack out on a 6 mile trail run through Discovery Park in Seattle to test for comfort and fit. We also tested ease of use for the hydration system, used a shower to evaluate water resistance, and assessed how effectively the pack carried our snacks and gear.

Comfort & Fit

The Osprey Dyna 15L generally provides a comfortable fit for most users, hugging the body with soft fabrics. As we adjusted for our body width and shorter torso length, we found the pack lacks sufficient sizing options despite having a range of sizes to choose from. This made it difficult to achieve the perfect fit, so the run was bouncy. The chest straps were also challenging to adjust and required a bit more force to snap on compared to normal buckles. The lack of adjustability for different body sizes may be a downside for smaller users, making it more suitable for those within average size ranges.

We could tell it was  designed to minimize discomfort and movement, but we found that it required experimentation to find the optimal fit. Despite this, the pack was quite comfortable once well fit and offered a snug feeling that kept the pack from bouncing around too much during our test run.

Hydration System

The hydration bladder in the Osprey Dyna 15L has both positives and negatives. We liked that the bladder’s fold-and-slide closure helped prevent leaks compared to screw-top bladders. It was a reliable feature for maintaining hydration on the go. 

However, this Osprey bladder lacked a handle, which made it awkward to handle and easy to spill, especially when full of water. The mouth of the bladder was difficult to maintain open with one hand to fill under the sink, so along with the lack of a handle, it was much trickier to use relative to other bladders. 

Additionally, the hose is integrated into the bladder and does not detach, which can be inconvenient when refilling or cleaning. The insulated hose is a nice touch, ensuring the water stays cool during use. Another downfall is the lack of securing the hydration hose. We ended up tucking the bite valve under one of the chest straps to keep it from bouncing around. 

Compared with other Osprey bladders, this one for the Osprey Dyna 15L feels flimsy and less user-friendly, but it was still a functional system.

Compartments

The Osprey Dyna 15L offers a good selection of compartments for organization, though it may feel a bit crowded with smaller, less practical pockets. The main compartment was the perfect size for a light jacket and snacks. There are well-placed hip and chest pockets for easy access to snacks, a phone, or other small items. However, only the zippered chest pocket fits a phone for quick access, which we found was slower access than we preferred. The other option was keeping the phone in the hip pocket, which felt more secure. Additionally, the mesh main pocket is built of fabric that supports light weights, so we could not carry more than the basics. 

The 15L volume makes it perfect for short runs or quick hikes but may fall short for those needing more space for heavier loads or larger gear.

Waterproofing

The Osprey Dyna 15L is not waterproof. The design was meant for quick outings in clear weather, so we felt like we could not give it a proper waterproof rating. While the fabric of the pack is durable and can withstand light splashes, it is not designed to handle any rain since it is made of mesh. There is no included rain cover to protect your gear, which is a significant disadvantage if you’re caught in a downpour. 

This pack may not be the best option for those hiking or running in regions with frequent rainfall or wet conditions. If you expect to be in wet environments often, you’d want to invest in a separate rain cover or choose a pack with better waterproofing capabilities to protect your gear from the elements.

Durability

The Osprey Dyna 15L is constructed with a lightweight, mesh fabric that helps with breathability and comfort during activity. Although the pack is durable for its intended purpose—short runs or day hikes with light loads—the mesh construction is not ideal for heavy-duty use. We found that the mesh would snag against harsh objects and rocky terrain. After prolonged use, the pack will likely start stretching and lose its shape with excessive weight, leading to discomfort or strain. 

The zippers, on the other hand, are smooth and easy to use, which is a positive feature for overall ease of access. We think this pack is best for those looking to go on a trail run or a quick half-day jaunt.

Weight

The Osprey Dyna 15L is a lightweight hydration pack, but it can feel slightly heavy for a running pack, especially when compared to more minimalist options. Surprisingly, it is heavier than the Gregory Swift 16/Inertia 18 H2O pack, which is made specifically for hiking rather than running. 

We found that the weight distribution was good when the pack was lightly loaded, but the mesh material sagged when carrying more than just our jacket. It’s ideal for carrying smaller loads, such as water, snacks, and light gear. However, when packed with normal day pack weights of 10 lbs, the pack quickly became uncomfortable. For short trail runs or day hikes, the weight distribution is manageable, but for extended use with additional weight, it may not be as comfortable or practical. 

Its  compact nature makes it easy to carry, but the Osprey Dyna could benefit from a slightly more structured design to ensure the weight is evenly distributed.

Should You Buy the Osprey Dyna 15L Hydration Pack?

The Osprey Dyna 15L is a comfortable, lightweight hydration pack that excels in providing easy access to essentials and a snug fit for light activities like short runs and hikes. Its sizing fits most but may feel large on smaller bodies. The hydration system, while functional, could be improved with better ergonomics for handling the bladder. Additionally, the pack is not waterproof, so it’s not ideal for wet conditions. Overall, the Dyna 15L is a great choice for those seeking a streamlined, efficient hydration pack for short, light adventures. However, for those who need more space, adjustability, or waterproof capabilities, there may be better options available.

What Other Hydration Packs Should You Consider?

If you’re looking for other options, here’s a few contenders among our best hydration packs:

Gregory Sula/Salvo 16 H2O: If back support is a priority, the Gregory Sula/Salvo 16 H2O outperforms the Osprey Dyna/Duro 15L. Featuring a supportive frame and better weight distribution, it’s a better choice for hikers needing stability and structure.

CamelBak M.U.L.E.® 12 Hydration Pack 100 oz: With multiple compartments for gear and easy-to-access pockets,  the CamelBak M.U.L.E. 12 allows better storage organization and is ideal for those who like to keep essentials easily accessible during hikes.

Deuter Speed Lite 13: If weight is a primary concern, the Deuter Speed Lite 13 offers a lighter and cheaper alternative to the Osprey Dyna/Duro 15L.

Bottom Line

The Gregory Salvo 16 / Sula 16 hydration pack excels in comfort, hydration efficiency, and lightweight design, making it an excellent choice for short hikes, day trips, or active outdoor activities. We tested it for an extended winter hike and found the pack a favorite. Its standout features include a lightweight build, supportive framed back, and easy-to-use hydration system with a leak-proof bite valve. The hip belt ensures comfortable weight distribution, and the roomy compartments provide just enough space to carry essentials without unnecessary bulk. Additionally, the durable mesh materials and smooth zippers contribute to the pack’s longevity.

However, there are a few areas for improvement. The non-adjustable shoulder straps may not provide the perfect fit for everyone, and there can be water seepage through the zippers during heavy rain. If you’re looking for a more weather-proof pack check out our guide to the best hydration packs.

The Sula 16 offers great value for those who want a reliable, no-frills hydration pack for short outdoor adventures. It’s perfect for anyone seeking a lightweight, compact solution for staying hydrated during day hikes or activities like biking or running. It may not be suitable for longer treks or extreme weather, but it’s a solid investment for active individuals who prioritize convenience and comfort in their gear.

How We Tested

We took the pack out near Snoqualmie Pass in Washington in the winter to test for comfort and assess how much gear it could carry effectively. We also tested ease of use for the hydration system and used a shower text to evaluate water resistance.

Comfort & Fit

The Sula 16 is designed with comfort in mind, providing a supportive framed back that keeps the pack stable even when moving quickly. The breathable mesh back panel kept our backs well ventilated even as we trekked quickly in the snow, preventing too much back sweat. 

The padded hip belt was another key feature we loved. It helped to distribute the weight of the pack evenly across our bodies, making the 10 pound load feel lighter. It was a step up from the Gregory Swift 16/Inertia 18 H2O pack while maintaining the same volume. 

Even though it’s a great choice for short to moderate hikes, it’s worth noting that the pack lacks load lifters and is not fully adjustable for different torso lengths. This limited our ability to fully customize the fit for our shorter torso. For most users, the pack provides a secure and comfortable carry, especially for a lighter load on shorter day hikes. Overall, the fit is stable and comfortable, but more customization in the straps would have been a nice addition for a more personalized experience.

Hydration System

The Gregory Sula 16 excels when it comes to its hydration system. The 3L hydration reservoir features a great full-length handle, which made it easy to fill, clean, and handle without slipping. The design ensures that even when your hands are wet or dirty, the bladder won’t slip out of your grip. Though the handle isn’t as ergonomic as a pan handle, it still does its job effectively. 

We liked that the hose attachment has a clear, audible click when re-attaching the hose to the bladder. This was a thoughtful detail to make sure the connection is secure in order to prevent leaks. However, the button to detach the hose is a bit stiff, which can make it harder to remove quickly if needed. The bite valve did not leak on us during the hike. It was easy to stow away with the strong magnet attachment to the sternum strap and didn’t get knocked off while hiking. 

We found the side pocket was not barely big enough to fit a Nalgene bottle when the pack was full. This could be problematic for those who prefer to carry both a hydration bladder and a traditional water bottle, But, with a 3L bladder capacity, this is only a minor issue. The bladder was easy to slide into the pack with its dedicated compartment but only worked well when we didn’t load the pack first. It was slightly more challenging to fit a full bladder when the pack was also full. Nevertheless, the hydration system is easy to use and very effective for staying hydrated on short hikes.

Compartments

The Sula 16 is fairly minimalist in its design, but it still offers practical storage options for a 16L pack. The main compartment was spacious enough to carry our essentials, even for a winter hike. The hip pockets were particularly handy to easily access smaller items like our phone, snacks, and energy gels. These pockets are roomy and can comfortably accommodate most small essentials. 

The external small pocket includes a key clip, which is a thoughtful feature for securing our keys to the car. The pocket itself is somewhat small and stiff but fits our small phone well along with a bar. We preferred using the hip pocket for the phone. 

The compartments aren’t as expansive as those on larger packs, so we felt the need to be selective about what we carried, limiting our layers to one extra jacket. The pack’s overall design is simple, with just enough storage space for day hikes, but it might be a tight fit if you’re looking to carry extra gear. Overall, it’s functional and well-organized, but don’t expect large compartments or excessive storage.

Waterproofing

The Sula 16 performs reasonably well when it comes to keeping your gear dry in light rain. We simulated a rainstorm by setting the pack under a shower faucet for 30 seconds. We found that the Gregory Sula/Salvo 16 was one of the best packs for rain rain protection around the hydration hose, preventing water from getting into the system. Other packs allow more water seepage through the hydration compartment and thus the main pack itself. 

But even with the better waterproof design on the hydration compartment, none of the zippers have a zipper cover, so water seeped through the zippers. In heavier rainfall, this pack would not stay dry inside, but on a shorter hike with light rain – like many hikes in Washington – the pack would offer decent protection. If you’re heading into more unpredictable conditions, you might want to consider adding a rain cover or using waterproof bags for your electronics and valuables. However, for light or brief exposure to rain, the Sula 16 will keep your gear dry.

Durability

Like many Gregory packs, the Sula 16 is built to last with high-quality materials that feel durable and ready to withstand regular use. The mesh back panel is more robust than other packs we tested and did not easily snag on rocks and debris along the trail. The zippers run smoothly, offering easy access to the compartments without catching or jamming, which is an important feature for any pack. It uses a 210D High Density nylon – half as thick as the other Gregory packs we reviewed.

Still, the pack is relatively durable, all things considered. We trust this pack will hold up to everyday hikes and feel the Greogry Sula/Salvo 16 will last for many seasons of light-to-moderate outdoor activity. For those who plan on using the pack in extreme conditions or for long, rugged treks, it may not hold up as well as more heavy-duty backpacks. Still, for its intended purpose—short hikes, daily use, and lighter outdoor activities—the Sula 16 is more than durable enough.

Weight

Weighing just 27.2 oz, the Sula 16 is sturdy but light enough to make your hike a breeze. This makes it a great choice for quick outdoor activities where you don’t need to haul around heavy gear. Gregory has carefully engineered the pack to balance weight and capacity. Weighing a half-pound more than the Gregory Swift 16 pack,  it’s not the lightest on the market, but it provides plenty of space and functionality for short hikes or daily use. Keeping our loads limited to 10 pounds, the pack felt light to carry and comfortable on the body. 

Whether you’re heading out for a day hike or just want a pack to carry essentials on a run or bike ride, the Sula 16 makes carrying gear effortless. It’s not overly padded or loaded with excessive features. But that’s part of its charm—light, simple, and effective for its intended use.

Should You Buy the Gregory Sula 16 Hydration Pack?

The Gregory Sula 16 hydration pack is a well-rounded, lightweight, and efficient solution for short hikes and day trips. It excels in comfort, functionality, and hydration, making it an ideal choice for anyone looking for a minimalist pack that still provides everything you need for a day outdoors. Its hydration system is top-notch, the fit is comfortable, and the compartments are organized without being overwhelming.

Though it may not be as customizable in terms of shoulder strap adjustments or as large as some other packs, it’s perfectly suited for carrying the essentials on shorter adventures. Whether you’re out for a hike, bike ride, or a run, the Sula 16 offers reliable hydration and thoughtful features to make your outdoor experience easier and more enjoyable.

What Other Hydration Packs Should You Consider?

If you’re just not into the Gregory Sula/Salvo 16 Hydration Pack, check out the rest of the best hydration packs for some great contenders.

Gregory Juno/Citro 24 H2O Review: The Gregory Juno/Citro 24 H2O offers a larger capacity and more comfort for longer hikes compared to the Gregory Sula/Salvo 16. With a more supportive hip belt and adjustable torso length, it is ideal for extended adventures where carrying extra gear is essential.

Osprey Dyna/Duro 15L Review: The Osprey Dyna/Duro 15L is a better choice for runners and fast hikers. It provides a sleek, body-hugging fit that minimizes bounce, unlike the more rigid structure of the Gregory Sula/Salvo 16. 

Deuter Speed Lite 13 Review: Super compact, the Deuter Speed Lite 13 is a great alternative for shorter adventures. Although it doesn’t offer the same organizational features as the Sula/Salvo 16, it’s a better choice for those prioritizing weight savings and speed on shorter, lighter hikes.

Bottom Line

The Gregory Swift 16 H2O / Inertia 18 H2O excels as a lightweight, compact hydration pack, perfect for short hikes, or biking. It offers a comfortable fit for light loads, with a well-distributed weight that minimizes fatigue. The hydration system is efficient, with a sturdy bladder and an ergonomic pan handle for easy filling and hydration on the go. 

The pack’s 16L capacity provides enough space for essentials, though it’s best suited for minimal gear due to its smaller compartments and limited storage. The pack is durable overall, but the mesh material on the shoulder straps and back may not be as robust for extended wear. It lacks a padded hip belt and adjustable shoulder straps, which can affect comfort during longer outings. If you’re looking for a larger or more robust pack, please see our full guide to the best hydration packs. 

The Swift 16 offers great value for those seeking a no-frills, efficient pack for short adventures. It’s ideal for active individuals who prioritize comfort and simplicity.

How We Tested

We took the pack out on a 6-mile winter hike at Lake Keechelus in Washington during the winter to test for comfort and evaluate how effectively it carried our snacks, gear, and other items for hiking. We tested ease of use for the hydration system and used a shower to evaluate the pack’s weather resistance.

Comfort & Fit

The Gregory Swift 16 H2O offers decent comfort for short hikes but lacks some features for long-term wear. During our winter hike in Washington, we felt slight discomfort with wearing the pack due to the lack of a padded hip belt. With 8 pounds on our back, we did not overpack the Gregory Swift 16 H2O but felt that any more weight would be uncomfortable for a longer hike. Additionally, there are no load lifters on the shoulder straps which reduced the adjustability.

However, with the lighter load we used during our testing, the fit was generally comfortable. Both the shoulder straps and back mesh were breathable, keeping us cool in the winter sun. This is not the most supportive pack on the market, but it’s ideal for minimalist adventures where comfort isn’t the highest priority.

Hydration System

One of the standout features of the Gregory Swift 16 H2O is its hydration system. The 2L bladder is easy to fill and insert, especially when the pack is full, thanks to its well-designed bladder compartment. We loved how the pan handle felt when filling the bladder and how easy it was to hold with just one hand. The pan handle ensures that the bladder doesn’t slip around, and the sturdy, long handle makes refills simple. There is no external side pocket for a Nalgene-sized bottle, but the 2L bladder is sufficient for the smaller pack size.

All connection points with the bladder were easy to use, such as the clip between the bladder and hose. The slightest issue we found was that the button to detach the hose was stiffer than we prefer. At least it gave us a piece of mind that the hose wouldn’t accidentally self-detach and cause a bladder leak. We like the bonus feature that the bladder mouth is the perfect fit for a Nalgene-sized filter (like the Katadyn water filter pump.

Overall, the bladder fits comfortably in the pack and is the most easy and ergonomic to use compared to all other hydration bladders we tested. The hydration system is reliable, and the bladder’s easy setup makes it one of the best features of the pack.

Compartments

The Swift 16 H2O features minimalist compartments that provide basic organization but lack versatility. There’s a separate compartment for the bladder, keeping the main compartment dry after filling the bladder. That main compartment offers enough room even after the hydration bladder, including snacks and a few small essentials, but it’s not roomy enough for larger gear. We were barely able to fit in a winter jacket with our lunch food, which limited what we could bring on the hike. 

Beyond those main compartments, the key pocket is a nice touch, keeping small items secure. The side zippered pocket is spacious, but the stiff fabric makes it harder to access. It’s the right size for a phone but due to the zipper location, we didn’t feel like it was a great option to place a phone in case it fell out.

However, we felt that the two external small pockets were helpful for providing extra storage divisions for small snacks as opposed to just a single compartment like more minimalist packs. There’s no internal hidden pocket, which was a drawback for hiding away important items like keys and wallet. For light adventures, the compartment layout works, but it may be too limiting for those who need more organization.

Waterproofing

The Gregory Swift 16 H2O performs reasonably well in wet conditions. We simulated a rainstorm by testing the pack under a shower faucet for 30 seconds. Overall, the pack kept most of its contents dry, but water did find its way into the compartments through the zippers since they weren’t covered.

However, the water-resistant fabric itself did not allow water seepage during the simulated heavy rain. Therefore, we believe that this pack would stand against a light-to-moderate Washington rain but not a heavy Colorado storm without a pack cover. Consider getting a pack cover if you plan to hike in heavy rain with the Gregory Swift 16 H2O pack.

Durability

The Gregory Swift 16 H2O is built with durable materials that can withstand regular use. Across most of their packs, Gregory uses 420D High Density Nylon, a thick and abrasion-resistant fabric that’s a great choice for frequent outdoor activities. On the outing, we did not see any glaring issues with the main body fabric. It never snagged on rocks or other sharp objects and any dirt always slid right off easily.

The mesh on the shoulder straps and back was clearly less durable. The terrain probably won’t rip or tear it, but it might not hold up to heavy loads over time. The zippers are smooth and easy to operate, great for on-the-go quick access without snagging the fabric. Overall, for a medium-sized day pack, the Gregory Swift 16/Inertia 18 H2O pack feels sturdy and long-lasting.

Weight

The Gregory Swift 16 H2O is a lightweight, compact hydration pack that is easy to carry during short hikes and outdoor adventures. Weighing in at 1.2 pounds, this pack is obviously lighter than any larger volume pack but also lighter than packs of similar size – some of which weigh closer to 2 pounds. Although the pack material felt slightly denser and heavier than expected for its size, the efficient build and compartments make the pack lightweight as a whole. 

The pack’s design also keeps weight close to the body, which helps maintain comfort and balance, even with a full bladder. It did not feel heavy while hiking despite not having a padded hip belt. Its 16L capacity is perfect for hikes with limited gear, but packing it too dense decreased the ergonomic feel and increased how heavy it felt on trail. Overall, the Swift 16 H2O is a solid option for light-to-medium loads and is well-suited for short-distance hikes, offering a good balance between size and weight.

Should You Buy the Gregory Sula 16 Hydration Pack?

The Gregory Swift 16 H2O is a solid hydration pack for short hikes, offering a lightweight design, easy-to-use hydration system, and good comfort for light loads. Even though its compartments are basic and lack organizational features, the pack excels in its hydration bladder and overall durability. The absence of a padded hip belt and adjustable shoulders may limit comfort for longer hikes, but it’s an excellent choice for those seeking a compact, efficient pack for quick adventures.

The value lies in its lightweight design and dependable hydration system, making it ideal for active individuals who prioritize simplicity and functionality.

What Other Hydration Packs Should You Consider?

If you’re looking for something different, please see our complete hydration packs guide – or try the following packs:

Teton Oasis 18L Review: For budget-conscious hikers, the Teton Oasis 18L offers solid performance at a lower price. While the Gregory Swift 16/Inertia 18 H2O excels in comfort, the Oasis provides plenty of storage space and a pack cover for rainy days for those looking to save without sacrificing too much quality.

CamelBak M.U.L.E. 12 Review: If you prioritize organization, the CamelBak M.U.L.E.® 12 is a stronger contender than the Gregory Swift 16/Inertia 18 H2O. With a well-designed layout and multiple compartments for quick access to gear, the M.U.L.E.® offers a better balance of capacity and organization, especially for short-to-medium treks.

Deuter Speed Lite 13 Review: For a lighter and more compact option, the Deuter Speed Lite 13 outshines the Gregory Swift 16/Inertia 18 H2O. Weighing less and featuring a minimalist design, it’s perfect for fast, short hikes where carrying extra weight isn’t a concern.

Choosing the right hydration pack can make or break your outdoor adventure, whether you’re hiking, biking, or running. With so many options available, it’s essential to find a pack that balances comfort, capacity, and performance to suit your specific needs. In this guide, we’ve reviewed 9 top hydration packs, considering crucial metrics like weight, comfort, compartments, hydration bladder functionality, waterproofing, and durability.

We tested each pack in real-world conditions – including short hikes in Seattle City Parks, longer treks in Washington’s Cascade Mountains, and even snowy terrain on Mt. Rainier – to provide honest, hands-on insights. Whatever your next adventure is, this guide will help you find the perfect hydration pack.

For more info, check out some of our other most popular gear guides:

Look through this quick list of the best hiking shoes, or continue scrolling to see our full list of favorites with in-depth reviews.

Best Hydration Pack Overall: Gregory Citro 24 H2O – Men’s / Juno 24 H2O – Women’s ($170)

Best Bladder: Gregory Inertia 18 – Men’s / Swift 16 H2O – Women’s ($110)

Best Mid-Size Hydration Pack: Gregory Salvo 16 – Men’s / Sula 16 H2O – Women’s ($200)

Best Small Hydration Pack: Camelbak M.U.L.E. 12 ($130) / Women’s

Best Large Volume Hydration Pack: Osprey Manta 24 – Men’s / Mira 22 – Women’s ($200)

Best Hydration Pack for Organization: Camelbak HAWG Pro 20 ($170)

Best Hydration Pack for Trail Runs:  Osprey Duro 15 – Men’s / Dyna 15 – Women’s ($165)

Best Budget Hydration Pack: TETON Sports Oasis 18 ($50)

Best Budget Minimalist Hydration Pack: Deuter Speed Lite 13 ($70)

How We Test & Methodology

We take a hands-on, real-world approach to gear testing to ensure our reviews are both thorough and reliable. We tested each of the hydration packs on a variety of hikes in the Cascade and Olympic Mountains and even in snowy conditions at Mt. Rainier. Our goal was to evaluate key metrics that matter most to outdoor enthusiasts: weight, comfort and fit, compartments, hydration system, waterproofing, and durability.

COMFORT & FIT

Comfort might be the single most important aspect to buying a hydration pack. We assessed comfort and fit by wearing each hydration pack during a variety of hikes, ranging from quick walks to longer, more strenuous treks. We focused on how well each pack distributed weight, the adjustability of straps, and overall body fit. For packs with adjustable features like shoulder straps, hip belts, and torso length, we tested their flexibility to accommodate different body types. We also paid attention to how each pack felt when loaded, especially over longer distances. We prioritized comfort as we evaluated how the packs prevented soreness, rubbing, or discomfort during extended use. This hands-on approach helped us determine which packs offer the best, most comfortable fit for a wide range of hikers.

HYDRATION SYSTEM

We assessed each hydration system by testing ease of use, leak prevention, and overall functionality. We filled the bladders to capacity, checked their fit within the packs, and evaluated how easy it was to attach and detach hoses. We paid special attention to bladder features like mouth openings, seals, and any added design elements, such as magnets to clip the hose or types of handles designed to make filling the bladders more ergonomic. We also tested the bladders in motion, assessing how well the water flow functioned during hikes and ensuring there were no leaks or discomfort when drinking. Overall, we prioritized hydration systems that were reliable and user-friendly in all conditions.

COMPARTMENTS

We evaluated the compartments by testing their organization, accessibility, and overall functionality during hikes. We focused on how easy it was to access both small and larger items, from snacks and phones to water bottles. We assessed the number of compartments and how they were arranged, noting whether they provided enough organization without being overly complicated. We looked at hip belt pockets, side pockets for water bottles, top pockets for phones and snacks, and if there was an additional compartment for the water bladder. Ultimately, we looked for packs that offered convenient, well-organized storage for all essentials.

WEATHER RESISTANCE

At DuskHiker, we assessed waterproofing by simulating real-world conditions, testing each pack under various environmental stressors. We ran water directly over each pack for a minimum of 30 seconds to see how it handled exposure to heavy rain. We focused on the performance of zippers, seams, and the pack’s overall material, checking for areas where water might seep through. We also tested any built-in rain covers to see how effective they were in keeping gear dry. Packs with waterproof coatings, well-sealed zippers, or integrated rain covers earned high marks, while those with weaker protection—especially in the hydration system—received lower scores for their ability to keep contents dry.

DURABILITY

At DuskHiker, we assessed waterproofing by simulating real-world conditions, testing each pack under various environmental stressors. We ran water directly over each pack for a minimum of 30 seconds to see how it handled exposure to heavy rain. We focused on the performance of zippers, seams, and the pack’s overall material, checking for areas where water might seep through. We also tested any built-in rain covers to see how effective they were in keeping gear dry. Packs with waterproof coatings, well-sealed zippers, or integrated rain covers earned high marks, while those with weaker protection—especially in the hydration system—received lower scores for their ability to keep contents dry.

WEIGHT

At DuskHiker, we assessed waterproofing by simulating real-world conditions, testing each pack under various environmental stressors. We ran water directly over each pack for a minimum of 30 seconds to see how it handled exposure to heavy rain. We focused on the performance of zippers, seams, and the pack’s overall material, checking for areas where water might seep through. We also tested any built-in rain covers to see how effective they were in keeping gear dry. Packs with waterproof coatings, well-sealed zippers, or integrated rain covers earned high marks, while those with weaker protection—especially in the hydration system—received lower scores for their ability to keep contents dry.

Why Trust DuskHiker

At DuskHiker, we know how challenging it can be to find reliable gear advice. Gear Analyst Cherlyn Eliza has hiked over 3000 miles in Washington state alone and has backpacked all over the US and abroad on rugged terrain like the Dolomites and summited volcanoes in New Zealand and Washington. Her outdoor experience gives her insight into all the key aspects to look for in a hydration pack. She personally tested each of these hydration packs in Washington State – from local Seattle parks to rainy and snowy conditions in the Cascade Mountains.

Analysis & Results

VALUE

At DuskHiker, we know that value is a huge factor in deciding what equipment you end up buying that gets you the most out of your money. The Gregory Inertia 18 H20 is the best on the market in terms of a low cost but highly effective hydration pack. It’s got a great amount of space for a day pack without being too bulky or over done. Its hydration system is one of the best, and it comes at a lower cost than other models by Gregory, such as the Gregory Juno/Citro 24 H2O, which offer a little more compartment space for the extra value.

Another good contender beyond the Gregory packs is the CamelBak M.U.L.E. 12. It’s got plenty of compartment organization and is a little less bulky and heavy than the CamelBak HAWG Pro 20 100 oz.

COMFORT & FIT

When it comes to comfort and fit, a hydration pack needs to distribute weight effectively, adjust to our body, and feel good on the trail. For longer hikes, the Osprey Mira/Mantra 22/24 stands out. It offers adjustable torso length and a breathable back panel, providing a customizable and comfortable fit for different body types. For short, fast adventures, the Osprey Dyna/Duro 15L is a top choice. It’s designed to hug the body tightly, making it ideal for runners. The Deuter Speed Lite 13 is a great second option for those looking for a smaller hydration pack for shorter adventures.

Ultimately, the Gregory Juno/Citro 24 H2O is the winner in terms of comfort. With a breathable back panel, adjustable torso, padded shoulder straps, and a supportive hip belt, it provides the best fit for long-distance hiking with plenty of space for gear.

HYDRATION SYSTEM

When evaluating hydration packs, one of the most important metrics to consider is how well the hydration system works—specifically the bladder size, ease of use, leak-proof design, and the integration with the pack itself. After testing, Gregory packs are clearly the forerunners, offering user-friendly, efficient designs. The Gregory packs use a convenient hook system to hang the bladder in its own compartment, making all their packs stand out. Additionally, the Gregory packs have the strongest magnet to hold the hydration hose in place while hiking. It is difficult to knock it out of its place. 

Specifically, the Gregory Inertia 18 H2O stands out with its large bladder and most ergonomic pan handle for the maximum support while filling up the bladder. The CamelBak M.U.L.E. 12 and CamelBak HAWG Pro 20 also perform well, though marginally less ergonomic than the Gregory packs’ hydration systems.

COMPARTMENTS

When evaluating hydration packs based on their compartments, it’s essential to consider not just the number of pockets, but also how user-friendly and accessible they are. Some packs prioritize storage space and organization, but others focus on simplicity for lighter, faster trips.

The Gregory Juno/Citro 24 H2O stands out with its well-organized compartments. It features a deep main compartment for larger gear and well-sized hip pockets that easily accommodate phones and snacks. Another excellent option is the Osprey Mira/Mantra 22/24 with a decent number of compartments, including hip pockets and a top pouch for easy access. On the other spectrum, the Deuter Speed Lite 13 is more of a minimalist design and offers primarily one compartment with a sleeve for a hydration bladder. It has a small side pocket, so it’s not great for carrying more than just the essentials.

Both the CamelBak M.U.L.E. 12 and CamelBak HAWG Pro 20 offer the most internal pockets for organization. However due to its slim design, with a full bladder in the pack, it makes packing bulkier items difficult. As a larger pack, the CamelBak HAWG Pro 20 stands out more than the CamelBak M.U.L.E. 12 with hip pockets and a few more internal pockets.

WATER RESISTANCE

When evaluating the water resistance and waterproofing capabilities of these hydration packs, it’s important to look at how well each one prevents water from entering, especially in rainy conditions. Some packs perform excellently in keeping water out, while others provide basic protection.

In terms of waterproofing performance, the Osprey Mira/Mantra 22/24 and Teton Oasis 18L stand out as the best options, with strong rain covers, water-resistant fabric, and well-protected hydration systems. The Gregory Juno/Citro 24 H2O and Gregory Sula/Salvo 16 H2O provide good water resistance but fall short compared to the Osprey and Teton packs in heavy rain. The CamelBak M.U.L.E. 12 and Deuter Speed Lite 13 are adequate for light rain, but they’re not fully waterproof and may struggle in wet conditions.

DURABILITY

When evaluating the durability of these hydration packs, it’s essential to consider the quality of the fabrics, zippers, straps, and overall construction. In general, all of the packs feel like they could last years of adventures. The Gregory Swift 16 H2O and Gregory Juno/Citro 24 H2O stand out by using 420D High Density Nylon for the bottom of the pack, which allows for even more rough handling. Similarly, the Osprey Mira/Mantra 22/24 uses the combo of 210D high-tenacity honey comb contrast nylon for the main pack fabric and 420D high-tenacity nylon for the bottom to accommodate more rough handling as you set the pack on rocky ground. 

Another important part of durability is the zippers. The Osprey packs stand out the most in ease of use of zippers. The Gregory packs come in a close second with slightly more potential to snag on itself. 

Overall, by a small margin, the Osprey Mira/Mantra 22/24, Gregory Swift 16 H2O and Gregory Juno/Citro 24 H2O hydration packs stand out amongst all the packs we reviewed.

WEIGHT

When evaluating the weight of these hydration packs, it’s important to consider how each design balances minimalism with functionality. For a minimalist light weight option, the Deuter Speed Lite 13 is the best option. At just 13.1 ounces, it’s one of the lightest packs on the list, especially for its volume, making it an excellent choice for ultralight hikers or those looking for a minimalist pack for quick, fast-paced trips. For the best balance of weight and storage space and amount of organizational pockets, the Gregory packs stand out the best. The Gregory Juno/Citro 24 H2O is better for longer day hikes while the Gregory Inertia 18 H2O is best for shorter day hikes.

How to Choose a Hydration Pack

HYDRATION RESERVOIR CAPACITY

The liquid capacity of a hydration reservoir is usually measured in liters (L), and most hold between 1L-3L. Water is heavy (1L weighs approx. 2 lbs.), so it’s important to carefully consider how much you’ll actually drink and plan accordingly. It can be nice to have a larger maximum capacity for long days on the trail, but you don’t have to fill your reservoir to the brim if you want to keep your load light. You could also plan to refill along the way if you’re carrying a filter and know there’s a place to do so.

To estimate how much water you’ll need for an outing, a good rule of thumb is to carry .5L per hour for moderate activity in mild temperatures. You may need to dial this up depending on conditions and personal preferences. Strenuous hiking in high heat may call for 1L of water or more per hour.

ORGANIZATION

Many hydration packs are designed with a large top-loading compartment for storing gear and many also have additional pockets for organization and easy access to small items. The hydration reservoir itself often sits in its own sleeve against your back and the drinking tube comes out through a port in the top. We tend to prefer backpacks that also include a mesh pocket in the front to store things we need often while on the go, like a rain jacket, water filter, or map.

FIT

Most hydration packs are one size fits all, which is why there are different models for men and women on framed packs. Some packs have adjustable torso lengths and a hip belt that will comfortably fit a range of sizes. Make sure to try on multiple sizes if you’re on the edge of one size and another so the pack fits your torso length and width for the most comfortable carry possible.

If you’re buying online, it’s a good idea to measure your torso length and find your hip belt size so you can check the specs before ordering. Check out our How to Find and Fit the Right Backpack video for more details on how to measure correctly.

BACK PANEL & VENTILATION

Some hydration packs have a suspended mesh back panel, which allows for more airflow and ventilation so your back can stay cool, or at least air out a bit of that sweat. Out top favorites when it coms to packs with cushy but airy back panels include the Gregory Citro / Juno H2O and Osprey Manta / Mira.

Though the difference is usually minimal (your back is still going to get sweaty), many hikers find those types of frames to be more comfortable. Packs with simple back panel designs usually incorporate foam padding for comfort and add grooves to help with ventilation. Both designs work well in our opinion.

HIPBELT

A hip belt’s primary function is to distribute the weight of your pack to your hips, which helps alleviate strain on your shoulders. Some hip belts have pockets for easy access to items you’ll want readily available (snacks, sunscreen, lip balm, etc.) Unfortunately, we’ve found that most hip belt pockets on daypacks are a bit tight for a large, modern cell phone. If you take a lot of photos with your phone, you may want to consider adding an aftermarket shoulder pocket to keep it handy and protected.

Minimalist hydration packs generally have a simple strap that adds a small amount of stability or no hip belt at all. For full-day excursions where we’ll be spending a lot of time on the trail, we prefer packs with more structured hip belts.

STERNUM STRAP

Sternum straps, which clip across your chest, provide a little more load stability and are included on almost all newer hydration packs. Some high-end packs have magnets embedded in the sternum strap that stick to the bite valve of your hydration tube (Gregory Citro / Juno H2O and Osprey Manta / Mira). A magnetic bite valve keeps your hydration system within reach at all times and out of the way of your arms.

WATER BOTTLE HOLSTERS

Hydration packs are made to work with hydration reservoir systems, but they often have side pockets to hold water bottles as well. This can be helpful if you need additional storage capacity for long, dry stretches of trail, or if you prefer to filter water using a bottle rather than directly in your reservoir when you need to refill. However, for folks who are fully committed to their reservoirs, those pockets are excellent for fast storage and fast access to jackets, gloves, and poles.

Water bottles can be more convenient in some instances, especially when you want to bring hot drinks or beverages other than water.

WATERPROOFING

In general, it’s not a good idea to rely on any backpack for full water protection. Some hydration packs come with pack covers, but after enough use in inclement weather, they won’t provide full protection in prolonged rain. We recommend packing your gear in waterproof stuff sacks or Ziploc bags inside your pack. You could also line the inside of your hydration pack with a trash bag to keep everything inside dry.

HYDRATION RESERVOIR CARE

Most hydration reservoirs have polyethylene linings, which retain tastes and odors more easily than polycarbonate. Because of this, we recommend not filling them with anything but water. The best way to maintain any plastic water bottle or bladder is to rinse it out after each use and let it air dry completely.

If funky tastes or odors develop, try filling your reservoir with water, adding a tablespoon each of bleach and baking soda, and letting it sit overnight. Rinse well and air dry as usual. A cleaning kit (CamelBak / Gregory) specifically made for your hydration reservoir will make maintenance even easier.

Conclusion

Whether you’re tackling a short day hike or a longer trek, we’re here to guide you to the best option for your needs, ensuring you’re prepared for any adventure. We hope this guide has given you the information you need to find the best hydration pack to keep you going on trail.