The Camelbak M.u.l.e Pro 14 100 oz. Hydration Backpack is the same great pack you know and trust with the all-new Air Support Pro Back Panel. Designed with body mapping technology to address areas that retain the most heat, maximum air flows across the back panel to provide comfortable cooling. Lightweight and breathable mesh harness designed for all-day comfort Hip belt with cargo added stability and quick access to essentials External hooks let you carry your helmet while still allowing full access to your pack Integrated tool roll Keep your CO2 cartridges, multi-tool, and tire levers safe and secure Adjustable Sternum Strap offers a range of adjustments for a custom fit and increased stability Compatible with the CamelBak Impact Protector (sold separately) Securely and safely ride with a second e-bike battery for all-day adventures Stretch overflow pocket quickly stashes an extra layer Cargo compression keeps gear close to the body for better balance & stability Lifetime manufacturer warranty against defects in materials or workmanship