Durability is a must for this piece of equipment. The MSR Evo Ascent are a proven product. The MSR Evo Ascent snowshoes are high-tech tools for snowy backcountry adventures. Evo Ascents feature superior purchase in steep snow through steel traction blades with saber teeth, crampons, and molded braking bars in deck. An integrated heel lifter eases strain on the calves during relentless ascents, making them the perfect tool for climbing in Alaska!