The Xtreme is ready for urban work school or outdoor activities. 1 680 denier polyester with 600 denier polyester canvas accents Hydration port at top Main compartment with dedicated padded laptop sleeve/hydration pouch Air mesh padded back panels Ergonomic air mesh padded shoulder straps Sternum chest strap Stretch air mesh side pockets Front zippered pocket with key clip Side-entry front flat zippered pocket Daisy chain attachment system Laptop sleeve dimensions: 13 h x 12 w x 1 d; fits most 15 laptops Dimensions: 19 h x 13.5 w x 5.5 d; Approx. 1 410 cubic inchesNote: Bags not intended for use by children 12 and under. Includes a California Prop 65 and social responsibility hangtag.