100% Polyester Cordura¸, 8 oz 41.5 x 29 x 15.5 cm / 16.3 x 11.4 x 6.1 inch 18.4 liter water repellent fabric lined bottom made of coarser CORDURA© fabric main compartment with zip closure big front pocket with zip closure padded back and shoulder straps in mesh small inside pocket with zip closure script embroidery CORDURA© label Carhartt Wip Payton Backpack / Black / Black /White