The winter can be unpredictable, but your footwear shouldn't be. That's why they developed the Arctic Ice. With 5mm of CR foam and fleece lining (faux fur) wrapped in their soft rubber outer layer, your feet will stay warm and dry in the most extreme temperatures and since the outsole features Vibram Arctic Grip compound, you can rest easy walking on the iciest of pathways. Details: CR flex-foam 5mm, warm fleece lining, extended rubber exterior, comfort insole, Vibram Arctic Grip Outsole and Vibram Icetrek, spandura upper and EVA midsole for added comfort. Material: Neoprene, Rubber, Fleece, Man Made.