600D poly canvas (solid); 600D heather poly (heather) Main compartment with padded laptop panel Interior organization pockets Front zippered rucksack flap Hook closure on front Exterior side pocket Padded air mesh shoulder straps Luggage trolley pass through on back Laptop sleeve dimensions: 12 h x 11 w x 1 d; fits most 15 laptops Dimensions: 17 h x 10.5 w x 5 d; Approx. 893 cubic inchesNote: Bags not intended for use by children 12 and under.