The Atwater is slightly warmer than regular ankle boots, and its outsole remains soft even in freezing temperatures. The main material is leather, with a waterproof DriDefense membrane underneath. The leather is made by ISA TanTec, a company that focuses on reducing water usage and chemical load in its tanning process. - Waterproof - Heat-MX 90 insulation and fleece lining: warmer than typical three-season boots, though not intended for polar expeditions - CushStep EVA midsole for shock absorption - Padded collar - Non-toxic Cleansport NXT treatment prevents odor buildup - Fleece lining - Rubber outsole with grippy lugs - Ortholite insoles with 5% recycled rubber and 15% surplus materials Kamik is a true specialist in winter footwearthe brand's name refers to the traditional caribou-hide winter boots of the Indigenous peoples of Canada, Alaska, and Greenland. Among the brands most well-known products are the ruggedCanada boots,which combine a rubber lower section with a leat