Osprey Hydraulics Backpack Water Reservoir with Bite Valve - BPA-Free, Leakproof Hydration Bladder with QuickConnect and Slide-Seal - Compatible with Most Hiking and Biking Packs, Clear

The Osprey Hydraulics Backpack Water Reservoir has completely changed the way I stay hydrated on hikes, bike rides, and long travel days. Osprey's attention to detail and build quality shines through in every part of this hydration system, making it one of the smartest purchases I’ve made for my outdoor gear setup. Built for Real-World Use The design is intuitive and trail-ready. The wide Slide-Seal top makes it super easy to fill and clean—no more awkward spills or wrestling with narrow openings. It seals tight with no leaks, even when tossed into a pack with other gear. The rigid backplate keeps the shape flat and low-profile inside my backpack, which prevents bulging and makes packing simple. Durable and Leak-Free I've put this reservoir through the wringer—hot days, rough terrain, overstuffed bags—and it still performs flawlessly. The high-quality TPU material is tough, flexible, and doesn’t leave any strange aftertaste in the water. The quick-disconnect hose is a small detail that makes a big difference when refilling or cleaning. Smart, User-Friendly Design The bite valve delivers a strong, steady flow and seals well with a simple twist. The magnetic sternum clip is a brilliant touch—it keeps the hose accessible without it flopping around. Cleaning is hassle-free thanks to the wide mouth and detachable parts. Perfect Pairing with Osprey Packs If you already use an Osprey backpack (like the Daylite, Talon, or Atmos series), this reservoir integrates seamlessly into the hydration sleeve. But even in non-Osprey packs, it performs just as well thanks to its slim profile and robust build.

Great bladder

I own the 2 liter and 3 liter versions. Neither have show any signs of leaking, even with the pack fully stuffed. They seem very durable and the plastic reinforced back allows for ease of placement into the pack. As with any reservoir, they can be a pain to clean if you neglect them. We simply rinse them with fresh water. We prop the bag open with the plastic piece that seals the bag and hang them upside down. Yes, it does comes with a plastic taste as many other reservoirs do. We used denture cleaner, as recommended by others in many backpacking forums, and that worked really well. A bit pricey, but I own 4 osprey packs and love the brand.

The twist valve broke in my hand, w/o any form of damage 3 months into owning it so now I'm unable to prevent leakage. Edit: they're sending me a replacement

This is well designed bladder that’s easy to fill and clean, and the quick-detach works great! However, it has a horrible plastic taste that persists despite many attempts to get rid of it, so is unusable for me. I have always loved Osprey bladders and have never had a problem with bad taste until this one.

I used a camelbak for years and always struggled with leaks. It could be user error but I never had success closing the camelbak without spilling and there was always leaking when I would take the bag out to refill. This reservoir is super user friendly. I use it for long distance cycling and had no issues or leaks after 6 hours of riding. Things to note: -- When you first open it, the seal to open the bag is VERY strong. Be super careful opening it the first time as I bet it would easily rip. Once you open it that first time, there's no issue from then on. -- I modified mine to use the camelbak bite valve instead because I find this type to be very mold prone. It was a bit of a tight fit, but I was able to get the camelbak one on and never had any issues after that.

This is a well built hydration reservoir with nice features for the user. We got 3L reservoirs for my husband and I and 1.5L reservoirs for my two young kids. We have taken them on several hikes so far and they are easy to fill and easy to clean due to the wide opening that spans the whole end of the reservoir. I have had no issues with leaks and the wide opening makes it easy to dry the reservoir if you can force the mouth to stay open. I recommend buying a hydration bladder drying frame, which are inexpensive and make this much easier. The reservoir seems durable so far and survived getting kicked around a muddy kayak without damage. The hose and bite valve are nicely designed and, so long as you remember to flip the shut- off valve, protect from leaks. The hoses are a bit more difficult to clean and dry, however. I bought a specific cleaning kit with a brush for the hose. One con of this reservoir is that, even after several uses, there is a plastic taste to the water. This doesn’t bother me too much but does bother my daughter quite a bit. The 3L fits well in my Gregory Maya 20L pack and in my husband’s Gregory 28L pack. One note, however is that the Osprey reservoirs do not fit on the Gregory packs’ integrated reservoir hanger. This is easily fixed with a rubber band however and was worth it to me for the ease of use of the Osprey reservoir. It does hang on my kids’ REI packs’ integrated hanger. The reservoir itself is super light weight so it doesn’t add much to the weight of the water itself. Lastly, I really like the handle on the reservoir, which makes it easier to hold steady when filling. Overall, a great hydration reservoir and we’re happily hiking with you purchase.

I ordered a 3L, received 2L. Going on a scheduled New Years Day hike and had to have a water bladder. So I can work with 2L. That is why I did not Return. I had a 3 L and then out of the blue it Started leaking . Leak must have been microscopic as I could not locate it. Osprey products are superior quality and I would Highly recommend any of their products. Since I was in a time crunch to Get a new water bladder for my hike I did not contact Osprey until I had received this one from Amazon. Their products have lifetime warranty and they sent me another water bladder FREE. So I now have a 2L and 3L for longer hikes. The bladder is excellent and I highly recommend! Easy to clean, fits exactly as should in Osprey backpack.

Très facile d utilisation pour mon sac à dos hikelite26. L insérer, le remplir, le nettoyer. Et semble très solide.

Perfect size for day hikes

Muy útil

安定の品質。てとも使い勝手がいいのでリピート高 使いしてます。

Quando si prova la sacca d’acqua non si torna più indietro. Io ho uno zaino Ospreys da anni e mi chiedo come abbia fatto fino ad ora senza sacca per l’acqua! Davvero comoda e unica ….