CARHARTT WIP Philis Backpack Storm Blue I031575. 100% recycled polyester canvas, 11 oz. 50 x 33 x 13 cm. 21.5 liters. Water repellent fabric. Unlined. Main compartment with zip and flap closure. Insert pocket with flap on the front with zipped pocket inserted on the left. Adjustable straps on the sides. Interior padded laptop pocket. Adjustable straps with chest strap. Square label.