Built for harsh winter climates and go-anywhere, do-anything versatility, the Mountaineer 25 has the features you need for an icy traverse or a deep powder ascent and descent. Left/right ActiveFit binding with Control Wings for control, support, comfort, and ease of use; fits men's boots up to size 13. Carbon steel Viper toe crampon and Python heel crampon for maximum traction on ascent, descent, and sidehill traversing. RII Response pivot system maintains natural foot position with shock-absorbing lateral flex and quick side-slope responsiveness. Ultralightweight, durable, and sleek Momentum SuperLite 7000 aluminum frame with a flat nose to maximize flotation. ActiveLift heel lift reduces calf fatigue on steep ascents. Rotating toe cord allows the tail of the snowshoe to drop, shedding snow and allowing the toe crampon to bite deeply. Supertough ArcTec+ decking is puncture and abrasion resistant to -40°F.