Proven pack design and lumbar reservoir comfort. The women's Syncline bike hydration pack is sized for everyday riding. The 12-liter pack has just the right amount of storage space for essential tools, snacks and layers plus a lumbar reservoir that keeps the load low and stable. Our proven Air Flow backpanel and shoulder strap designs deliver breathable comfort. Materials (Expand) 600D bluesign® approved Polyester Dimensions (Expand) 732 cubic inches [ 12L ] 18 x 9.5 x 6" [ 46 x 24 x 15cm ] 1.3 lbs. [ .6kg ] Features (Expand) Care (Expand) If your Dakine bag gets dirty, we 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. Size Guide (Expand)