The Joule is our take on the classic worn chalk bag using our exclusive, ergonomically designed shape improving the connection of climber and bag on route. The Joule's compact, fast and light, design reduces weight and bulk, and increases comfort. The flat back design improves accessibility and stability by preventing twisting and bag shifting. Designed with the natural ergonomics of the hand, the tapered diamond shape funnels chalk into one area for quick easy dips, allowing you to concentrate on the send, not on the bag. Additionally, a reinforced upper rim opens the bag wide for easy access at all times. Allow 2 weeks for production of custom ordered Joule chalk bags.