PackFlat Binding - binding accommodates larger mountaineering & snowboard boots and is designed to pack flat. Reactiv-Trac Frame - Integrates the classic flex of an elliptically-formed nose with the perimeter traction of a serrated t-frame BC Crampon - Provides the right amount of bite needed in variable snow conditions while also being lightweight Heel Lift - Eases fatigue when climbing and ensures better grip when the terrain gets steep