Air Support Back Panel - Body Mapping technology provides maximum ventilation. Ventilated hip belt with cargo keeps essentials close at hand. 2L Crux reservoir with Quicklink system. Essentials organization pocket. Side stretch pocket and overflow pocket. Adjustable sternum straps. Dual cargo compression keeps pack cinched down. Key clip holds car or house keys. Tube trap securely fastens tube. Separate hydration reservoir compartment. Dual daisy chains. Belt fit range: 26" - 46". Torso fit range: 17" - 21". Gear capacity: 28-liters.