Primed and ready for high speed action, the Camelbak Skyline 10 LR Hydration Backpack was built to keep up with you when you're tearing up aggressive downhill trails. It has a lumbar design that offers maximum stability when you're sending jumps and banking turns, and it has enough room for a long day's worth of water and all of your essential bike tools and accessories. In addition to holding a reservoir with three liters of water, the Skyline also has space for snacks, a CO2 pump, an extra layer, spare tubes, phone, and keys. A bike tool organizer roll keeps your tools in order, and a helmet hook holds your brain bucket when you're hitching a ride back to the top of the trail. The shoulder stabilizing yoke, waist belt, and sternum strap work together to keep your pack from shifting during your ride. Multi layer EVA and ventilated mesh in the back panel offer all day comfort, and the tough as nails nylon fabric can withstand abuse sustained during high speed slams. Rounding things out is a magnetic tube trap that stows your tube in one click so you spend more time riding and less time fumbling with your pack.