600 D polyester canvas; 360 D polyester twisted twill canvas Large zippered main compartment Interior padded laptop compartment Front zippered pocket with interior organization panel Removable adjustable padded web shoulder strap Metal zipper pulls Web handles Luggage trolley pass through on back Laptop sleeve dimensions: 8 h x 15 w x 1 d; fits most 15 laptops Dimensions: 12.5 h x 16.375 w x 4 d; Approx. 819 cubic inches Note: Bags not intended for use by children 12 and under.