Hydration Reservoirs

Ideal for all your trails, the SOFT RESERVOIR 1.5L will keep you hydrated and energized on the go, shrinking as you drink to limit water bounce. The reservoir combines soft materials, shorter routing and optimized slider grip for practical comfort kilometer after kilometer.

Ideal for hiking, the SOFT RESERVOIR 2L will keep you hydrated and energized on the go, shrinking as you drink to limit water bounce. The reservoir combines soft materials and extra grip on the slider for practical comfort kilometer after kilometer.

The hydration bladder for summer and winter Staying hydrated is important all year around. This is why we’ve adapted our classic SOFT RESERVOIR for your winter and summer adventures. The insulated hose and reservoir ensure the water doesn't heat up or freeze, while the freeze-proof cover on the bite valve means you can drink easily on the move, whatever the temperature.

New for 2019: Premium taste-free hydration reservoir with 50% faster flow rate. Introducing the Big Zip™ EVO—the latest evolution in taste-free hydration. The Big Zip EVO delivers a significantly higher flow rate than previous Platypus reservoirs and a host of new features, making it a great option for backpackers, hikers, and mountain bikers. Available in 1.5L, 2.0L, 3.0L

UPDATED: Ultralight taste-free, minimalist reservoir with high flow rate. The original Platypus® water reservoir that became a backcountry classic, the Hoser™ is an ultralight, minimalist hydration system that delivers taste-free hydration with a versatile, durable design that makes it great for backpacking, thru-hiking, and day hikes. Updates include a new self-sealing HyFLO™ bite valve that delivers a 30% increase in flow rate, making it quicker and easier to hydrate on the go.

Osprey’s Hydraulics 3L Reservoir by Hydrapak is ideal for large-volume packs and long-duration activities. The HydroStatic backerplate provides structure for easy loading into a full pack and maintains a flat profile. Thoughtful design makes filling, cleaning and most importantly staying hydrated on the trail easier than ever. All parts are BPA-free, phthalate-free, lead-free, guaranteed. All materials are certified food safe according to FDA and EU regulations.

Osprey’s Hydraulics Bite Valve provides a high-quality replacement for your old, neglected and beat up bite valve. The bombproof ¼ twist shut-off design guarantees you won’t experience any unpleasant leaks.

When it’s time to replace the hose on your existing hydration system, Osprey’s Hydraulics Reservoir Hose is the answer. Made of high-quality quarter inch tubing for dependable performance and featuring a high flow rate, it will bring new life to your hydration system. All parts are BPA-free, phthalate-free, lead-free, guaranteed. All materials are certified food safe according to FDA and EU regulations.

Replacing old bite valve sheaths helps maintain a sanitary hydration system. Osprey’s Bite Valve Sheaths provide a soft surface for your chompers to sink into when you’re hydrating on the fly. Also perfect for those who can’t help but chew through the bite valve like their old #2 pencils in high school.

HYDRATION RESERVOIR REPLACEMENT The best-performing valve in the industry. The Blaster Bite Valve comes with a dust cover to protect you from grittier elements, it’s leak-proof, self-sealing and easy to disassemble for cleaning. It’s a clear winner.

If there’s one thing we know best, it’s water. Our athletes, customers and colleagues told us they wanted a reservoir that delivered more water per sip, with a foolproof design that made it easy to fill up and hit the trail. The Crux delivers 20% more water per sip, with an ergonomic handle for easier refilling, and an on/off lever that makes it easy to prevent leaks. Like all of our gear, we put the Crux through exhaustive stress tests to make sure that it won’t fail you on the trail. 100% free of BPA, BPS and BPF.

If there’s one thing we know best, it’s water. Our athletes, customers and colleagues told us they wanted a reservoir that delivered more water per sip, with a foolproof design that made it easy to fill up and hit the trail. Crux delivers 20% more water per sip, with an ergonomic handle for easier refilling, and an on/off lever that makes it easy to prevent leaks. Like all of our gear, we put the Crux through exhaustive stress tests to make sure that it won’t fail you on the trail. 100% free of BPA, BPS and BPF.

If there’s one thing we know best, it’s water. Our athletes, customers and colleagues told us they wanted a reservoir that delivered more water per sip, with a foolproof design that made it easy to fill up and hit the trail. The brand new Crux delivers 20% more water per sip, with an ergonomic handle for easier refilling, and an on/off lever that makes it easy to prevent leaks. Like all of our gear, we put the Crux through exhaustive stress tests to make sure that it won’t fail you on the trail. 100% free of BPA, BPS and BPF.

Stash it in your running vest, belt, or even in the palm of your hand. This lightweight, collapsible flask features our classic one-piece silicone bite valve for rapid hydration on race day, and packs down easily once it's empty. We designed the Quick Stow to fit easily in the front compartments of all of our running vests. Once it's empty, it folds down small enough to fit in your pocket. - Bite valve self-seals after each drink, eliminating annoying drips - Empty flask collapses and folds ultra-compact to fit in most pockets - All parts top-rack dishwasher safe - Volume indicators in ounces and milliliters for tracking hydration and adding electrolytes - Hang flask upside down for easy drainage and drying