MUCK ARCTIC ICE XF BOOT REALTREE EDGE 8 The Arctic Ice Extended Fit Boot keeps feet warm and dry in the most extreme conditions. Features an 8mm neoprene bootie with fleece lining wrapped in layers of soft rubber with a posterior gusset for a customized fit. The EVA midsole offers added underfoot comfort and traction with a Vibram Arctic Grip outsole with Icetrek technology for confidence on icy surfaces.