Description of Marmot Eiger 35 Backpack The Eiger 35 is our classic, comfortable, all-around daypack--ideal for alpine-style climbs, long forays into the backcountry and spring ski trips. Features: Weight: Medium 3 lb 3 ozs / 1.446 kgs Main Material: 420d HD Nylon Main Material: 210d Nylon Mini Box Rip Volume: Medium 2100 cu in / 34 litres Large 2300 cu in / 38 litres Compression Molded Backpanel Highest Level of Comfort and Durability Hydration Pocket and Port Designed to Hold Hydration Pouch Systems Removable Lid Can Be Used as a Pillow or to Lighten Your Load S-Curved Shoulder Straps Contour Around Arms for Comfort Ski-Carrying System Offers Choice of How To Carry Your Skis Split-Wrap Waist Belt Stretch Adjuster Shoulder Straps Tuck Away Ice Axe Straps Waist Belt Pockets For Convenient, Quick Access