The Woody Arctic Ice is one of the warmest neoprene boots on the market. Perfect for the hunter or outdoor worker that gets cold easily or is in far northern climates. These 8mm 4-way stretch CR Flex-Foam, fleece lined (faux fur) boots set the standard in warmth and protective support. The 2mm foam under the footbed assures warmth in temperatures that can drop beyond -50 degrees or when standing on ice. As with most Muck boots, a topline binding keeps the snow and cold out, and warmth inside. Details: 8mm CR Flex-Foam, warm fleece lining, 2mm thermal foam under the footbed, EVA contoured molded midsole, bob-tracker molded outsole, comfort topline. Material: Rubber, Neoprene, Fleece.