Alps Mountaineering Hydro Bladder Option:Default The indestructible industry workhorse used

The indestructible industry workhorse used by ski patrols and guiding operations everywhere

Use preloaded activity profiles for trail running

this is a proven performer built to handle a range of conditions and landscapes

Innovative twist design

Alps Mountaineering Hydro Bladder Option:Default The indestructible industry workhorse usedThe Reservoir 3. 0 is a 3 liter reservoir perfectly designed to pair with your ALPS pack. The Ultravalve on the Reservoir 3. 0 features a revolutionary articulating bit valve as well as a built in check valve that eliminates backwash and prevents air from entering the tube. It also has a feature that allows it to twist open for a no bite, full flow function. The anit microbial IonPure treatment helps prevent bacteria and mold growth. The Reservoir 3.