The winter can be unpredictable, but your footwear shouldn't be. That is why Muck developed the Arctic Ice Mid AG. With 8mm 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: 8mm CR flex-foam, fleece lining, Vibram Arctic Grip and Vibram Icetrek, spandura, new midsole - outsole. Material: Rubber, Neoprene, Fleece.