Best Hydrapak in 2026

PORTABLE & PACKABLE: Fold or crush the water storage containers when empty and pack into the included storage bag. The flexible design makes it so light and compact, you'll forget it's in your pack.

DURABLE & VERSATILE: Made of flexible and abrasive-resistant TPU, the Seeker can be frozen to use as an ice pack, filled with hot water (max temp 60°C/140°F), or kept in your camp kit as your go-to filter bag

EASY TO USE: Low-profile, weather resistant handle and load-bearing lashpoints make this hydration reservoir easy to handle, pour, and carry; the large 42mm opening makes it easy to fill

PORTABLE & PACKABLE: Fold or crush the water storage containers when empty and pack into the included storage bag. The flexible design makes it so light and compact, you'll forget it's in your pack.

DURABLE & VERSATILE: Made of flexible and abrasive-resistant TPU, the Seeker can be frozen to use as an ice pack, filled with hot water (max temp 60°C/140°F), or kept in your camp kit as your go-to filter bag

EASY TO USE: Low-profile, weather resistant handle and load-bearing lashpoints make this hydration reservoir easy to handle, pour, and carry; the large 42mm opening makes it easy to fill

SHEATH REPLACEMENT - Fits and replaces all HydraPak bite valves on our Reservoirs, SoftFlasks, and UltraFlasks.

DURABLE SILICONE - Silicone sheaths are soft to bite and durable, include inner posts

Sport type: Outdoor Lifestyle

PORTABLE & PACKABLE- Crush the Seeker Hydration Reservoir when empty and store in the included storage bag. The flexible design makes it so light and compact, you'll forget it's in your pack.

VERSATILE WATER STORAGE - Wide working temperature range (can be frozen - max temp 60° C / 140° F).

WATER FILTER COMPATIBLE - Filter more water in the backcountry, most 42mm threaded filters (Katadyn BeFree) screw on to the top.

SAFE & SUSTAINABLE - Clear cap and bottle made of 50% recycled plastic, the equivalent of 9-single use plastic bottles

SMOOTH FLOW TWIST CAP - Provides an experience like drinking out of a glass. 180’ turn delivers the perfect flow, twist back to close for leakproof transport

GRIP GROOVE & CARRY HANDLE - Flexible bail handle is comfortable to carry, lightweight and nearly indestructible. Indented finger groove provides a flat edge for a better grip

HYDRATION VEST COMPATIBLE: Fits easily in most hydration vests, belts or pack pockets. Provides bounce-free stability and a flexible flask shoulder to prevent chafing.

COLLAPSIBLE FLASK: Soft material conforms to any pocket, and shrinks as you drink to reduce movement and pack away easily when empty.

PERFECT FOR AID STATIONS:UltraFlasks are equipped with our SpeedFill Cap designed for quick and easy refilling at aid stations. A side tab pops open the cap in one motion and snaps shut with a click.

PACKABLE - Expands for use and collapses back down to a 1 / 4 of its size for maximum pack space

LIGHTWEIGHT - 50% lighter than most hard bottles, the Stash is perfect for hiking, backacking or any other activity where space or weight are at a prem

)ULTRA DURABLE - Made of abrasive-resistant TPU, the Stash can stand up to whatever you throw at it

twist to collapse down to 1/4 of it's filled size when empty, minimizing the space it takes up in your pack

at 50% lighter than most hard bottles it's the most compact and convenient water bottle solution

the flexible walls, tpu carry handle & grip ring create a comfortable carrying experience

ADJUSTABLE BAFFLE: Low-profile and increased stabilization for high impact activities – mountain biking, snowboarding, skiing, hiking, running – unlock baffle for full volume

PLUG-N-PLAY CONNECT SYSTEM: Easily disconnect the drink tube (an auto shutoff valve prevents leaking) and remove the reservoir from your pack for convenient refilling or in-line filtering

NEW HIGHER-FLOW: Engineered with high performance features including the Blaster Bite Valve with a twist on/off valve

PORTABLE & PACKABLE- Crush the Seeker Hydration Reservoir when empty and store in bail handle. The flexible design makes it so light and compact, you'll forget it's in your pack.

VERSATILE WATER STORAGE - Wide working temperature range (can be frozen - max temp 60° C / 140° F).

WATER FILTER COMPATIBLE - Filter more water in the backcountry, most 42mm threaded filters (Katadyn BeFree) screw on to the top.

SKI, HIKE, BIKE & CLIMB COMPATIBLE - The Stow fits flush in ski pants and coat pockets, bike jerseys or fanny packs - flatten and roll when empty.

DURABLE & LIGHTWEIGHT- Made of abrasive-resistant TPU, the Stow can be frozen and is dishwasher safe, at under 2 oz it’s 80% lighter than most hard bottles.

POCKET SIZED - Flexible bail handle for comfortable carrying, quick attachment, and filling from a faucet, lake or river.

SKI, HIKE, BIKE & CLIMB COMPATIBLE - The Stow fits flush in ski pants and coat pockets, bike jerseys or fanny packs - flatten and roll when empty.

DURABLE & LIGHTWEIGHT- Made of abrasive-resistant TPU, the Stow can be frozen and is dishwasher safe, at under 2 oz it’s 80% lighter than most hard bottles.

POCKET SIZED - Flexible bail handle for comfortable carrying, quick attachment, and filling from a faucet, lake or river.

SKI, HIKE, BIKE & CLIMB COMPATIBLE - The Stow fits flush in ski pants and coat pockets, bike jerseys or fanny packs - flatten and roll when empty.

DURABLE & LIGHTWEIGHT- Made of abrasive-resistant TPU, the Stow can be frozen and is dishwasher safe, at under 2 oz it’s 80% lighter than most hard bottles.

POCKET SIZED - Flexible bail handle for comfortable carrying, quick attachment, and filling from a faucet, lake or river.

HANDHELD HYDRATION - Ultra light, designed for the minimalist runner, hiker, climber or fits in running vests or pack pockets.

COLLAPSIBLE WATER BOTTLE - Soft material conforms to your hand or pocket, and shrinks as you drink to reduce movement and pack away easily when empty.

SECURE FIT - Easy to hold, adjustable strap cinches down to fit different hand sizes

Collapsible for easy use, storage and transport

Molded top and bottom provides 3 dimensional shape and lashing options

Constructed with TPU (thermoplastic polyurethane) for superior durability and flexibility

HYDRATION VEST COMPATIBLE - Makes a great nutrition or hydration addition or replacement to your running vest, pack, or belt pocket.

COLLAPSIBLE FLASK - Soft material conforms to any pocket, and shrinks as you drink to reduce movement and pack away easily when empty.

REFUEL ON THE GO - High-flow nozzle, designed to carry and dispense energy gels with an easy to clean nozzle. Holds 5+ servings.

PACKABLE - At only 97g, it packs down smaller than a deck of cards. Your new thru-hiking essential.

WATER FILTER COMPATIBLE - Attaches to most 42mm threaded water filters such as the Katadyn BeFree. Use as your filter squeeze bag or drink directly through.

BAIL HANDLE - Flexible handle for comfortable carrying, quick attachment, and filling in a lake or river. When empty you can flatten and roll up in the handle for space saving storage.

INSULATED & WATERPROOF SLEEVE: Equipped with an all-season, waterproof sleeve - this hydration system has an insulated foam layer and welded seams that provide a durable and lightweight construction

PORTABLE & PACKABLE: Roll-top opens for fast filling and buckles closed for carrying and hanging, four lash points make it easy to secure to any gear or rig

EASY TO USE: The Shape-Shift reservoir features a simple to use slider top and adjustable baffle that maintains a low-profile when filled, unlock the baffle to access full reservoir volume

Two Cup Set

Flexible design - allows you to carry anywhere

Free standing when empty or full

HANDHELD HYDRATION - Ultra light, designed for the minimalist runner, hiker, climber or fits in running vests or pack pockets.

COLLAPSIBLE WATER BOTTLE - Soft material conforms to your hand or pocket, and shrinks as you drink to reduce movement and pack away easily when empty.

SECURE FIT - Easy to hold, adjustable strap cinches down to fit different hand sizes

6L WATER STORAGE - Portable and packable, the Pioneer is built for multiple days on the trail. It features an innovative two piece construction. A removable water storage reservoir and an abrasion resistant outer sleeve.

EASY TO FILL & CLEAN - The reservoir’s Slide-Seal top opens wide for quick filing in spigots or streams and closes tight for a leak proof seal. It can be turned inside out for cleaning and drying between trips.

WATER FILTER COMPATIBLE - Filter more water in the backcountry via the included 28mm thread adapter, compatible with most 28mm filters (Sawyer Mini and Squeeze)

HYDRATION VEST COMPATIBLE - Fits easily in most hydration vest, belt or pack pockets. Provides bounce-free stability and a flexible flask shoulder to prevent chafing.

INSULATED - IsoBound Insulation keeps water cold and won’t sweat in warm temperatures.

COLLAPSIBLE FLASK- Soft material conforms to any pocket, and shrinks as you drink to reduce movement and pack away easily when empty.

SAFE & SUSTAINABLE - Clear cap and bottle made of 50% recycled plastic, the equivalent of 9-single use plastic bottles

SMOOTH FLOW TWIST CAP - Provides an experience like drinking out of a glass. 180’ turn delivers the perfect flow, twist back to close for leakproof transport

GRIP GROOVE & CARRY HANDLE - Flexible bail handle is comfortable to carry, lightweight and nearly indestructible. Indented finger groove provides a flat edge for a better grip

PORTABLE & PACKABLE: Fold or crush the water storage containers when empty and pack into the included storage bag. The flexible design makes it so light and compact, you'll forget it's in your pack.

EASY TO DISPENSE Included Camp Tap connects with Plug-N-Play Cap. Press and release for quick filling or lock in open position for fast dispensing or washing.

EASY TO DISPENSE: Included Camp Tap fits into the Plug-N-Play Cap - Somply push to dispense water and release to autoseal, locks open for faster filling or washing.

HIGH FLOW RATE: Access potable water anywhere - Filters approximately 1,500 liters of fresh water at a rate of >1 L per minute.

SAFE: Effectively removes common waterborne bacteria (99.9999%), and parasitic cysts (99.999%) per EPA Guide Standards and microplastics (99.999%) per NSF 42 greater than or equal to 3.0 microns in size.

EASY TO USE: Convert your reservoir or water bottle into a water filter. Comes equipped with cap and backflush adapters.

FITS MOST BACKPACKS: Low-profile cap and integrated hanger make it easy to secure and hang in your backpack. Perfect for hiking, family bike rides and camping.

DURABLE CAP AND HANDLE: Widemouth, leak-proof twist cap that’s easy to open and close - ergonomic handle for easy filling.

HIGH FLOW: The water reservoir is equipped with our flexible, non-kinking drink tube and the high-flow, self sealing Phaser valve - It’s leak proof and perfect for handsfree hydration.

FITS MOST BACKPACKS: Low-profile cap and integrated hanger make it easy to secure and hang in your backpack. Perfect for hiking, family bike rides and camping.

DURABLE CAP AND HANDLE: Widemouth, leak-proof twist cap that’s easy to open and close - ergonomic handle for easy filling.

HIGH FLOW: The water reservoir is equipped with our flexible, non-kinking drink tube and the high-flow, self sealing Phaser valve - It’s leak proof and perfect for handsfree hydration.

HYDRATION VEST COMPATIBLE - fits easily in most hydration vest, belt or pack pockets.

PACKABLE - Soft material conforms to any pocket.

COMPRESSIBLE - Shrinks as you drink reducing water movement.

Product 1: PORTABLE & PACKABLE: Fold or crush the water storage containers when empty and pack into the included storage bag. The flexible design makes it so light and compact, you'll forget it's in your pack.

Product 1: DURABLE & VERSATILE: Made of flexible and abrasive-resistant TPU, the Seeker can be frozen to use as an ice pack, filled with hot water (max temp 60°C/140°F), or kept in your camp kit as your go-to filter bag

Product 1: EASY TO USE: Low-profile, weather resistant handle and load-bearing lashpoints make this hydration reservoir easy to handle, pour, and carry; the large 42mm opening makes it easy to fill