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Designed for fast missions on technical cold-weather terrain. These waterproof hiking shoes feature a Vibram ICETREK outsole for high-level grip on icy ascents and snow-covered routes. GORE-TEX Duratherm insulation protects against the cold to keep your feet warm when temperatures drop. A high rebound 5% recycled EVA foam midsole combines with an Ortholite insole for extra comfort and cushioning on longer hikes. The abrasion-resistant ripstop upper features a zippered fastening with a lacing system underneath for an adjustable fit. With a rocker-shaped sole and steadying Mammut Basefit System, the Aenergy Mtn Mid Winter GTX shoes deliver lightweight performance and rugged winter protection.