Durable adaptable and comfortable for long adventures. Features a 2-liter Crux Reservoir with Quicklink disconnect. Additional 2-liter gear capacity. Ventilated harness and Air Support back panel helps keep you cool. Integrated tool organization. Secure zippered pocket. Adjustable sternum strap supports a custom fit. Bungee overflow or quick stash or hold extra clothes. Tube trap management keeps tube secure and accessible. Stow and secure helmet. Reflectivity supports low light safety. BPA/BPS/BPF-free construction. 15" to 21" Torso fit range.