View an overview video on the G3 Ion binding and the Ion LT 12, straight from the guy who designed it: Cam Shute, Senior Product Development Engineer. In this video Cam will describe the step in feature, the snow clearing channel on the toe, the foreward pressure spring on the heal, the brake function, the heal lift functions and the switch from ski to tour. Also learn about Ion LT 12, which is more the ski mountaineering version.