600D Polyester and 300D Polyester ; The perfect tech backpack with padded laptop sleeve, built in USB cable and several organizational pockets; Padded and adjustable straps, top carry handle; Large zippered main compartment with laptop sleeve measuring approx 11w x 13.25h; Built-in USB port with 305l charging cable for easy charging (device not included); Includes small interior pocket for storing power bank or smartphone (not included) during charge; Front zipper pocket approx 10.75w x 8.25h; Hand-wash only; Recommended weight tolerance: 17 lbs; Product Size: 10.75 w x 17 h x 5 d