The 101 is the feature-filled backpack you've been searching for. Great for school, work and travel, the 101 is divided into three zippered compartments for maximum organization with a padded flat bottom designed to stay upright. The main features of the 101 include a cooling breathable air mesh backpanel and shoulder straps, a hidden back panel security pocket, a roomy main compartment, a laptop sleeve, sunglass pocket, side water bottle pocket and an internal iPad sleeve. Bring it all with you in this comfortable every scenario pack. 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, 300D polyester, fleece lined padded iPad sleeve, breathable air mesh backpanel and shoulder straps, organizer pocket, backpanel security pocket, fleece lined sunglass pocket, water bottle pocket, padded bottom panel, adjustable sternum strap, limited lifetime warranty. Dimensions: 1750 cubic inches (29 liters), 19'' x 12'' x 9'' (48 x 31 x 23cm). Material: Polyester.