Description Product Description The Mammut Lithium Guide 35 Pack offers a slew of features in a sporty alpine hiking backpack that is as comfortable to wear as it is functional. Featuring a V frame that gives you the best load transfer with high range of motion, a 3D EVA foam back panel has air channels for excellent ventilation, and anatomically shaped and padded hip and shoulder straps give you the comfortable ride you want. A large front zipper gives access to the main compartment, and a multitude of other pockets make sure you can store everything you need close at hand. Gear loops and straps let you stow your poles and axe, and compression straps make sure everything fits snuggly. The Lithium Guide 35 Pack is also hydration system compatible.