The Trek II proves that you don't need to sacrifice great functionality for great looks. Heritage-inspired top-loader backpack has been updated with snap-to magnetic buckles for quick access. Details: Magnetic buckles, mesh side pocket, interior mesh pocket, breathable shoulder straps, side access, adjustable sternum strap, limited lifetime warranty. 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. Dimensions: 1600 cubic inches (26 liters), 20'' x 12'' x 7'' (51 x 30 x 18cm). Material: Polyester.