JanSport Trail Series Scout Backpack nylon Ergonomic S-curve shoulder straps with Adjustable aluminum frame system fits 13"-17" torso lengths and Dual panel-loading main compartments Dual side zippered pockets and Dual side water bottle pockets Bag bar shelf with Padded hip belt and Twin front daisy chains Breathable mesh lumbar cushion stays dry and comfortable with Front zippered pocket Capacity:3853.1 cu in / 63.14L,Dimensions:33in h x 20.5in w x 12in d,Weight:3 lbs 10 oz / 1.67 kg,Fabric:600 Denier Polyester / 210 Boxcar Dobby Polyester