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 inches Note: Bags not intended for use by children 12 and under.