Two trail runners navigating a rocky path through brush, wearing Osprey hydration vests equipped with front soft flasks.

Osprey X HydraPak

Founded in 1974, Osprey is a leading outdoor gear brand known for designing innovative, high-performance backpacks and carry solutions for hiking, backpacking, trail running, cycling, travel and beyond. Built on a foundation of comfort and quality, Osprey has earned a reputation for exceptional fit, carry technology and a commitment to sustainability, helping all kinds of people explore farther and define adventure for themselves.

A man trail running over rocky alpine terrain wearing an Osprey hydration vest with two soft flasks in the front pockets.

HydraPak and Osprey’s Hydration Reservoir Technology

For more than 10 years, HydraPak has worked with Osprey to develop and manufacture hydration solutions that integrate seamlessly with their packs. Together, we developed a hydration platform engineered specifically around how reservoirs fit, carry and perform inside Osprey packs. In the Hydraulics™ 2L and 3L reservoirs, a HydroStatic™ backer plate adds structure to maintain a flatter profile and make a full reservoir easier to load into a hydration sleeve. For the lightweight Hydraulics™ LT 1.5L and 2.5L reservoirs, welded chevron baffles address the same challenge differently—reducing sloshing and controlling reservoir profile without the added weight of a backer plate. 

Close-up of a trail runner squeezing water into his mouth from an Osprey 500mL Soft Flask, clearly showcasing the internal WingStay™ Removable Flask Stabilizer.

Hydration as an Integrated System

Most recently, we collaborated on the design and development of the WingStay™ Removable Flask Stabilizer, which fits inside a soft flask to improve pocket integration and reduce bounce while running. These distinct engineering solutions, each designed around the pack and the athlete, illustrate how HydraPak has helped partners turn hydration into an integrated part of their product design. 

Close-up of a trail runner loading an Osprey 500mL Soft Flask into his hydration pack, clearly displaying the internal blue WingStay™ Removable Flask Stabilizer.
A female and male athlete running on a dirt trail, equipped with Osprey hydration packs and soft flasks.
A female trail runner standing by a lake, reaching behind her to stow her trekking poles on the back of her purple Osprey hydration vest.

Want to Work Together?

Learn more about integrating HydraPak products into your vests, apparel and belts.

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