Features 25-30 Liters, 25-35 Liters, > 25 Liters, Unisex Main: 210D Nylon Triple Ripstop; Base: 420D Nylon Description Product Description The Lithium Guide is a sporty alpine hiking backpack with a wide range of features. Its Contact Ventâ"¢ suspension system ensures a perfect fit and optimum load control. The huge front access makes it extremely user-friendly and sets new standards in its class. Whether you are on a leisurely hut trek or hiking in alpine terrain, the Lithium Guide is a reliable partner. Back system: CONTACT VENT V Frameâ"¢ Volume / Weight: 25 l (1150 g); 35 l (1230 g) Features: V-frame for good load transfer with high freedom of movement Good back ventilation thanks to the 3-D EVA foam with air channels Comfortable to wear thanks to the anatomically shaped, softly padded hip and shoulder straps Large front zipper access to main compartment 2 lid pockets â€" external and internal Large front zipped pocket Zipper pocket for water bottle on shoulder strap Zipper pocket on hip belt 2 mesh side pockets Ice axe straps and trekking pole straps Lateral compression straps, can also be tensioned at the front to carry gear Forward-pull hip belt adjustment Hydration system compatible