Based on the light-and-warm ethos of mountaineering boots, Wölvhammer is a comfortable, high-performance boot for riding and walking in cold, snowy, icy conditions. With Primaloft and aerogel insulation, waterproof construction, a removable liner boot, and nonslip microglass lugs in the sole, Wölvhammer keeps feet comfortable from 0 to 25°F (-18 to -4°C).