The Duel 26L puts everything within reach when chasing life's adventures. If your bag gets dirty, Dakine recommend hand washing with mild soap (like Nikwax Tech Wash), cold water and a soft bristle brush. If hand washing is not going to do the trick, use a front loader washing machine. To ensure your backpack doesn't get tangled, place inside a pillowcase or mesh bag before washing. Always use cold water, mild soap and run on a gentle cycle. Never bleach your pack. Hang to dry in a warm but shady place, ensuring both inside and out are dry before storing. Details: 600D polyester, padded laptop sleeve, fits most 14'' laptops, skateboard carry straps, insulated cooler pocket, organizer pocket, fleece lined sunglass pocket, mesh side pockets, adjustable sternum strap, limited lifetime warranty. Dimensions: 1600 cubic inches (26 liters), 19'' x 12'' x 9'' (48 x 30 x 23cm). Material: Polyester.