CoolWave Plus suspension provides great load support and excellent ventilation. Splitter zip design opens wide and lays out flat to provide full access to all gear. Pull-out tarp keeps climbing gear out of the dirt while sorting. Internal compression panel to hold heaving climbing gear firmly against backpanel. Two internal zippered compartments (one fabric, one mesh) to hold and organize harness, shoes, chalk bag, etc. Large external pocket for gear that needs to be handy with inner security pocket. Flat zip pocket hidden under daisy chain. Unique offset-cut Rebar daisy chain is easier to clip. Attachment points for multiple ice axes. Dual side compression straps. Side bottle pockets.