The Dakine women's Drafter bike backpack is a full volume pack built with a women's specific fit. The 3-liter hydration pack stows in the lower lumbar offering a lower center of gravity for better balance. The women's Drafter carries a generous load in a compact women's specific design. Details: Women's specific fit, 3L/100oz Hydrapak lumbar reservoir with quick disconnect, high-flow Blaster bite valve with shut-off, Air Suspension backpanel, DK Impact CE-certified Spine protector compatible (not included), breathable ergonomic shoulder straps, full face or trail helmet carry, deployable armor carry straps, quick stash zippered side pocket, fleece lined sunglass-phone pocket, internal organizer pockets, magnetic hydration hose clip, reflective logo, 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: 854 cubic inches (14 liters), 18'' x 11.5'' x 8'' (46 x 29 x 20cm), 2.5 lbs. (1.1kg). Material: Nylon.