Hydration Reservoirs

NEW: Connects a GravityWorks™ water filter directly to the Big Zip™ EVO Reservoir. Connect your GravityWorks™ water filter (and most other water filters) directly to a Big Zip™ EVO Reservoir without ever having to take it out of your pack. Just plug the hose into the base of the filter, insert the quick-disconnect fitting into the upper port on your reservoir, let gravity do the rest and you'll be on your way with clean, taste-free water.

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: Protects bite valve from dirt and debris; slows freezing. Whether you set down your pack on the muddy trail or in the snow, protect what goes into your mouth from dirt and debris while slowing down the freezing process with the updated Platypus® Bite Valve Cover. The new shape ensures your cover stays closed and it fits with all Platypus hydration system bite valves.

NEW: Fast-flowing bite valve works with all Platypus shutoff valves and 1/4" tubing The HyFLO™ is a streamlined, one-piece bite valve that offers fast-flowing, self-sealing, leak-free performance. Made with a soft, taste-free, medical-grade silicone, the HyFLO stands up to years of use. The bite valve is included on all Big Zip™ EVO & Hoser™ Reservoirs and is compatible with all legacy Platypus shutoff valves.

NEW: Insulates to prevent freezing and keeps water cool in the heat. Fend off frozen drink tubes and help keep liquids cool in hot weather with the Drink Tube Insulator. The new design offers a completely covered bite valve (to keep it clean and protect it from freezing quickly), a reverse coil polyurethane-coated zipper (to prevent ice/snow build up), a large zipper pull (to easily open with one hand—even with gloves on), and a hook and loop closure shoulder strap attachment (to secure to a pack). Works with all Platypus® drink tubes and bite valves.

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 Hose Magnet Kit allows you to secure non-magnetized hydration systems to the sternum strap on your pack. Improve the efficiency of your on-the-fly hydration delivery by upgrading to a combination magnetic sternum bite valve and strap. -Magnet clip securely clips on any ¼” hose -Sternum magnet attaches to sternum web for ideal bite valve placement

Make any pack Hydraform Reservoir-compatible with Osprey's Hydraform Magnet Kit. This handy kit includes three detachable sternum-strap magnets.

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.

The Bite Valve Cover keeps your reservoir bite valve free from dirt and dust on the trail.

Osprey’s Hydraulics® LT 1.5L Reservoir by Hydrapak is made for light and fast activities where weight and balance are critical. Twin-welded chevron baffles stabilize the water and maintain a flat profile. The streamlined design allows for easy loading into internal hydration sleeves. 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.

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.

Completely collapsible for superior packing efficiency, our burliest medium-to-large capacity water storage and delivery systems are perfect for everything from alpine- to road warrior-style expeditions. Armed with incredibly tough 1,000-Denier exteriors and now laminated with an improved BPA-free food-grade lining for better-tasting water, these bags can handle freezing and the abuse inflicted by expedition crews and hardcore adventurers. Accessories like the Shower or Hydration Kits add do-all versatility, and the new svelte 3-in-1 cap lets you fill, drink and pour with greater ease.

Water hauling utility without the weight or bulk. Updated for 2017: DromLite Bags offer high-capacity water storage yet collapse all the way down to the size of their cap. This supreme packability comes with the weight savings to match to keep you moving quickly on the trail. Reconstructed of a rugged film and RF-welded seams, they offer reliable durability. Inside, an improved BPA-free food-grade lining ensures better-tasting water and can handle freezing. Accessories like the Shower or Hydration Kits add do-all versatility, and the new svelte 3-in-1 cap lets you fill, drink and pour with ease.

INSULATED HYDRATION TUBE If you’ve ever had a shot of warm water on a blistering hot day, you know why we created HydraFusion. Durable and lightweight with built-in foam insulation, this simple, but breakthrough tube helps keep your water cooler in even the hottest temps. The kit includes a 36” TPU tube, Blaster Valve with dust cover, and our Plug-N-Play connector. Refreshing.

Quickly connect a drink tube to your HydraPak Seeker or HydraPak water bottle for versatile backcountry use with the Plug-N-Play cap. Use inside your pack like a hydration reservoir, strap outside like a bottle, or quickly setup a gravity feed at camp. - Twist release technology quickly connects / disconnects HydraPak drink tube (not included) - Automatic shut-off for leak-proof tube removal - 42mm screw cap fits Stash 750ml and Seekers - Includes a dirt guard with tether to keep your cap clean

COMPRESSIBLE ON-THE-GO HYDRATION When you’re going for your personal best, running out of water is not an option. Essential equipment for every adventurer, the 1 liter Stash is large enough to handle all-day hydration, expanding for use and crushing back down for maximum pack space. Compact, flexible and 50% lighter than a hard bottle. It’s construction with purpose. PACKABLE Twist to collapse down to 1/4 of it's filled size when empty, minimizing the space it takes up in your pack LIGHTWEIGHT Compact and convenient, 50% lighter than most hard bottles WIDE MOUTH Ideal size for all day hydration, easy to fill and clean and compatible with 63mm threaded filters Easy Carry Flexible bail handle for comfortable carrying and easy attachment

COMPRESSIBLE ON-THE-GO HYDRATION Welcome to utility and design in harmony. Essential equipment for every adventurer, the Stash 750 flattens for maximum room in your pack. Expands for use on the trail. It’s compact, flexible and 50% lighter than a hard bottle. Construction with purpose. PACKABLE Twist to collapse down to 1/4 of it's filled size when empty, minimizing the space it takes up in your pack LIGHTWEIGHT Compact and convenient, 50% lighter than most hard bottles Easy Carry Flexible bail handle for comfortable carrying and easy attachment

SLIM PROFILE REVERSIBLE HYDRATION Here’s a runner’s gear essential. Designed to be more comfortable in vests and packs, the Velocity 1.5L features an ergonomic slide-seal top. It’s our lightest reservoir yet, and the wide opening makes for rapid refills at aid stations. Never run on empty.

ISOBOUND INSULATED HYDRATION The Velocity IT 1.5L features our IsoBound™ insulation technology that keeps water cold and won't sweat in warm temperatures. Engineered to keep fluids at an ideal temperature 38% longer than a standard reservoir. After all, cold water is more refreshing.

CamelBak's Big Bite Valve mouthpiece offers hands-free hydration and is ideal for any application. And, it's remarkably drip resistant.

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.

New Crux tube offers 20% more water per sip, and with the insulated thermal sleeve your water stays cooler in warm weather.

The Crux reservoir on/off valve pairs with CamelBak's Big Bite valve and tune. Using an integrated valve, water flow shuts off for added security during transport.

CamelBak's Ergo HydroLock controls your fluid flow with the flip of a switch. Turn it on to drink, turn it off for added security during transport. Simply insert it into the end of your CamelBak drinking tube and attach the valve to the other end. Plus, the 90-degree bend makes sipping on the go a cinch!

Keep your tube close and hydration on-tap with the Magnetic Tube Trap.