Equally at home in the mountains and the city streets, this pack is ready for any kind of Mission you can dish out. It has a laptop sleeve and sunglass pocket for the daily grind, but with versatile features like the vertical snowboard carry and goggle pocket you can hit the slopes when you're not sharpening pencils. 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, 600D recycled PET, vertical board carry straps, fleece lined goggle pocket, organizer pocket, fleece lined sunglass pocket, padded laptop sleeve, fits most 15'' laptops, padded waist belt, adjustable sternum strap, limited lifetime warranty. Dimensions: 1500 cubic inches (25 liters), 21'' x 11'' x 8'' (53 x 28 x 20cm). Material: Polyester.