Alps Mountaineering Hydro Bladder Option:Default Medium Size

Medium Size

Brings back original color and luster

Stylized handles with soft touch grips

Boston Valve For Quick And Easy Inflation And Deflation

and moisture

Alps Mountaineering Hydro Bladder Option:Default Medium SizeThe 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.