This lightweight high-tech snowshoes are sturdy enough for tough climbs in the winter and offer superior impact resistance over snow and ice on premises. The revolutionary on the Denali model building snowshoes are equipped with the same modular extension system that allows you to adapt to different loads and snow conditions. We have also added televator climbing aids that facilitate the ascent. Super grip: grip Serrated blades, crampons and molded cleats offer exceptional grip. Performance on steep terrain: The televator Heel Lifter reduces calf fatigue, making climbing easier and more efficient. Versatile: 10 - and 20-cm-wing extensions (sold separately) can be fitted for difficult conditions and higher load capacity. Secure Fit: Crampon extension prevents slipping of the heel, while single strap binding guarantees a perfect fit and secure attachment to snowshoe. Also great for Boots: Enlarged boot hole can accommodate snowboard and ski boots.