Hydration

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.

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.

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.

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

We designed the Slope Runner Vest to help you keep moving during long-haul days, with enough storage for extra layers, nutrition and hydration that's organized and within easy reach.

Expanding on the vest chassis of the Slope Runner series, the Slope Runner Exploration Pack 18L is built for big linkups or trailblazers looking to fill in the blank spaces on the map.

This magnet clip has been improved to ensure a more secure hose capture for 0.25 in. / 6.35 mm reservoir hose and magnetic bite valve attachment to keep your carry svelte and bite valve up and out of the way.

• Installs on any 1/4-inch (.635cm) hose for easy disconnect/connect. • Bonus extra male piece and hose to connect to water filters.

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 all-new, next-gen bite valve is compact while still delivering great flow, with a smooth, on-off valve that is easy to operate one-handed. Installs on any 0.25 in. / 6.35 mm hose.

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.

Add-on or aid replacement for vest-pack harness pockets.

The next generation of reservoir is here. Redesigned from tip to tail, the 1.5-liter Hydraulics LT reservoir features innovative and ergonomic improvements that make it easier to carry, fill, load up and use-whether you're buzzing around town, travelling or hitting the trails. Designed specifically for lumbar packs for off-the-back hydration.

The next generation of reservoir is here. Redesigned from tip to tail, the lightweight 1.5-liter Hydraulics LT reservoir features innovative and ergonomic improvements that make it easier to carry, fill, load and use-whether you're buzzing around town, travelling or hitting the trails. This version gets dual baffles, keeping the reservoir as light as possible while still offering improved control and structure and works best with internal reservoir sleeves.

The next generation of reservoir is here. Redesigned from tip to tail, the lightweight 2.5-liter Hydraulics LT reservoir features innovative and ergonomic improvements that make it easier to carry, fill, load and use-whether you're buzzing around town, travelling or hitting the trails. This version gets dual baffles, keeping the reservoir as light as possible while still offering improved control and structure and works best with internal reservoir sleeves.

The next generation of reservoir is here. Redesigned from tip to tail, the 2-liter Hydraulics reservoir features innovative and ergonomic improvements that make it easier to carry, fill, load up and use-whether you're buzzing around town, travelling or hitting the trails. This version features a lightweight yet sturdy backer plate that helps reduce bending or buckling while loading, making it ideal for internal or external pack hydration sleeves.

The next generation of reservoir is here. Redesigned from tip to tail, the 3-liter Hydraulics reservoir features innovative and ergonomic improvements that make it easier to carry, fill, load up and use-whether you're buzzing around town, travelling or hitting the trails. This version features a lightweight yet sturdy backer plate that helps reduce bending or buckling while loading, making it ideal for internal or external pack hydration sleeves.

Take a load off, whether you're training or exploring the trails, with the Duro/Dyna Belt. Designed to move with you, without any friction, while providing up to 720 mL of hydration between its two included soft flasks and room for keys, gels and your phone to boot. Made with 100% recycled materials. WEIGHT 0.474 LBS.

Take a load off, whether you're training or exploring the trails, with the Duro/Dyna Belt. Designed to move with you, without any friction, while providing up to 720 mL of hydration between its two included soft flasks and room for keys, gels and your phone to boot. Made with 100% recycled materials.

The Kitsuma 1.5-liter offers a low-profile option with no unnecessary frills for riders who require ample hydration and nothing more. The pack's included next-gen Hydraulics™ reservoir provides critical hydration while its comfortable, stable design seemingly disappears on trail, so you can focus fully on the singletrack ahead. WEIGHT .882 LBS.

With a minimalist, value-focused design, the Osprey Sportlite Hydraulics 15 delivers reliable performance. A streamlined, durable build makes hiking a breeze, with essential features to provide just what you need. This evolution of the beloved Osprey Sportlite series integrates a 2.5-liter reservoir for easy hydration. Constructed from bluesign® approved, 100% recycled nylon main body fabric.

With a minimalist, value-focused design, the Osprey Sportlite Hydraulics 15 delivers reliable performance. A streamlined, durable build makes hiking a breeze, with essential features to provide just what you need. This evolution of the beloved Osprey Sportlite series integrates a 2.5-liter reservoir for easy hydration. Constructed from bluesign® approved, 100% recycled nylon main body fabric.

With a minimalist, value-focused design, the Osprey Sportlite Hydraulics 15 delivers reliable performance. A streamlined, durable build makes hiking a breeze, with essential features to provide just what you need. This evolution of the beloved Osprey Sportlite series integrates a 2.5-liter reservoir for easy hydration. Constructed from bluesign® approved, 100% recycled nylon main body fabric.

With a minimalist, value-focused design, the Osprey Sportlite Hydraulics 20 delivers reliable performance. A streamlined, durable build makes day hiking a breeze, with a front stretch compression pocket and AirScape™ backpanel to haul just what you need. This edition integrates a 2.5-liter reservoir for easy hydration. Constructed from bluesign® approved, 100% recycled nylon main body fabric.

With a minimalist, value-focused design, the Osprey Sportlite Hydraulics 20 delivers reliable performance. A streamlined, durable build makes day hiking a breeze, with a front stretch compression pocket and AirScape™ backpanel to haul just what you need. This edition integrates a 2.5-liter reservoir for easy hydration. Constructed from bluesign® approved, 100% recycled nylon main body fabric.

When you want to carry water on your back-and almost nothing else-the Katari 3-liter bike pack has you covered. Carry a few essentials, be it a multitool or some light snacks, with its minimal storage while the included next-gen Hydraulics™ 2.5-liter reservoir provides ample hydration for you afternoon or all-day rides. WEIGHT .97 LBS.

At seven liters, our largest Katari bike pack comes with the next-gen 2.5-liter Hydraulics™ reservoir to keep you hydrated on your longer rides and enough storage to pack snacks, tools and an extra lightweight layer on your next all mountain or trail ride. Still minimal and streamlined, it offers a little more flexibility for gear without getting bulky. WEIGHT 1.235 LBS. VOLUME 427 IN3 / 7 L

Small but mighty, the Duro 1.5 offers up a slim and streamlined carry for trail runners and racers looking for a minimal pack that still handles ample water. Its included 1.5-liter reservoir will keep you hydrated miles after your last support stop. Made with 100% recycled materials.

Small but mighty, the wo Dyna 1.5 offers up a slim and streamlined carry for trail runners and racers looking for a minimal pack that still handles ample water. Its included 1.5-liter reservoir will keep you hydrated miles after your last support stop. Made with 100% recycled materials.

The road ahead may be long, but you're ready. The Duro 6 is a favorite choice for trail runners and racers who don't tap the brakes. Its included 1.5-liter reservoir inspires confidence when your journey takes you beyond support, and it has enough room for extra layers and calories for big days. Made with 100% recycled materials.