Moose Racing Travel Backpack 3517-0501Constructed with durable 600D polyester oxford woven material Rugged, wide mouth zippers provide access to large cargo pocket that give this pack over 9. 8 liters of cargo capacity Foam padded, fleece lined laptop pocket One external zipper phone pocket and two mesh bottle pockets Fully adjustable shoulder and sternum straps make heavy loads comfortable and balanced Mesh back padding with ventilation channels improve comfort Internal main pocket