Crux Reservoir: 70oz capacity with Quicklink disconnect delivers more water per sip and easy refills Air Support Light Back Panel: Body-mapped ventilation for lightweight, breathable comfort Secure Storage: Zippered pocket for essentials and integrated tool organization Bungee Overflow and Helmet Carry: Quickly stash extra layers and secure your helmet Trail-Ready Features: Includes adjustable sternum strap, tube trap, light loop, and reflective accents for safety