The responsible mechanism is hidden

but still allows moisture vapour to escape when you are working hard

Fabric is made with 100% recycled polyester and is structured for comfort during movement

Provides performance

The design is a fusion of Chinese and Norwegian traditions

osprey hydraulics reservoir 2 lt Color:blue The responsible mechanism is hiddenProviding maximum levels of stability and ease of use, the Osprey Hydraulics reservoir is essential for keeping hydrated on your outdoor adventures. The unique combination of the pour shield and Slide Seal top opening allows you to easily fill and empty the reservoir, whilst enabling complete access for cleaning after use. Our unique Osprey Hydraulics anatomically shaped back plate provides stability and creates a flat profile to ensure the reservoir