Muck Boot Arctic Ice Highlander XFMHV-RTE-CA The Artic Ice Highlander Boot features an 8mm neoprene bootie with fleece lining wrapped in layers of soft rubber with a posterior gusset for a customized fit. These boots will keep your feet warm and dry in the most extreme conditions. The EVA midsole offers added underfoot comfort with a Vibram Artic Grip outsole with Icetrek for confidence on the iciest surfaces. 100% Waterproof 8mm Neoprene bootie Warm fleece lining Gusset for adjustable calf width Rugged Spandura upper for durability Vibram Artic Grip Outsole and Vibram Icetrek Muck Boot Muck Boot Mens Arctic Ice Highlander XFMHV-RTE-CA