The Stashable Backpack is the ultimate deployable travel backpack. This compact pack compresses into a small stuff sack. Unstuff the pack and off you go with a fully-featured backpack including a main compartment, a zippered front pocket and a mesh side pocket. 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: 70D nylon, 150D polyester, deployable backpack, mesh side pockets, zippered front pocket, limited lifetime warranty. Dimensions: 1220 cubic inches (20 liters), 18'' x 12'' x 4'' (46 x 30 x 10cm). Stash pouch: 7'' x 3'' x 3'' (18 x 8 x 8cm). Material: Nylon, Polyester.