When three o'clock rolls around, dump the contents of your locker into the Dakine Union 23L Backpack and head home for the weekend. The Union's roomy main compartment will keep all of your homework secure, while its 15-inch laptop sleeve stows your computer or tablet during the long walk home. 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, PU suede, non-padded laptop sleeve, fits most 15'' laptops, fleece lined sunglass pocket, zippered front pocket, limited lifetime warranty. Dimensions: 1400 cubic inches (23 liters), 17'' x 12.5'' x 6'' (43 x 32 x 15cm). Material: Polyester.