600 D poly canvas; 360 D poly twisted twill canvas Large main compartment Back dedicated padded laptop compartment Front dedicated organization pocket Side mesh pocket Metal zipper pulls Air mesh padded back and shoulder straps Luggage trolley pass through on back Laptop sleeve dimensions: 18.75 h x 14.75 w; fits most 15 laptops Dimensions: 18.75 h x 11.25 w x 4.75 d; Approx. 1 002 cubic inches Note: Bags not intended for use by children 12 and under.