The JanSport Odyssey backpack features a versatile padded sleeve designed to fit a 3L hydration system or a 15 inch laptop, tricot lined tablet sleeve, tuck-away hipbelt and ergonomic S-Curve shoulder straps. ________________________________________ #10 zipper on main compartment Daisy chain Deluxe utility pocket with organizer Dual water bottle pockets Ergonomic S-Curve shoulder straps Ice axe loop Quick access loft pocket Side compression straps Sternum strap Tricot lined tablet sleeve Two large main compartments Versatile padded sleeve designed to fit a 3L hydration system or a 15" laptop ________________________________________ CAPACITY: 2350 cu in / 39 L DIMENSIONS: 20" x 14" x 12" / 50 x 35 x 31 cm LAPTOP DIMENSIONS: 12.5" x 11.5" x 1.5" / 31 x 29 x 4 cm WEIGHT: 2 lbs 14 oz / 1.3 kg