The responsible mechanism is hidden

This redesign features an asymmetrical tongue

It is also perfect for those cold Winter days in the city

made of a mix of materials

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