Dakine Drafter Hydration Pack - 10L Black. The Dakine Drafter 10L bike hydration pack meets the needs of modern mountain bikers. A frame saves weight and increases comfort and breathability. A quick-stash on the shoulder harness offers intuitive storage for sunglasses and a magnetic hydration buckle with a three-liter Hydrapak lumbar reservoir delivers convenience and a lowered center of gravity. The organizer pocket offers a home for tools replacement parts and necessities. Additional features include spine protection compatibility external helmet carry and deployable straps to carry pads.