Adjustable waist belt provides a just-right fit. Dri-mesh back panel offers comfort while you rock out at the music festival. Two zippered compartments stash your keys, wallet and small gear. Fleece-lined sunglass pocket holds your fancy shades. 600D polyester offers solid durability, abrasion resistance and protection against the elements. If your Dakine 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. Dimensions: 9 x 5 x 3'' (23 x 13 x 8cm). Material: Polyester.