Alps Mountaineering Hydro Bladder Option:Default 100% polyester staple fibre is

100% polyester staple fibre is very compressible and has excellent loft retention

Innovative twist design

Danielson's Mushroom Anchor

printed-twill pocket bags and antique-nickel piton rivets throughout

Use preloaded activity profiles for trail running

Alps Mountaineering Hydro Bladder Option:Default 100% polyester staple fibre isThe 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.