PLEASE ORDER BOOTS 2 SIZES LARGER, LINER RUNS VERY THICK. Hurricane winter snowmobile boots are the #1 rated snowmobile boot recommended by R.U.Outside. These boots have been tested by experts and meet all the requirments for the perfect endurance snowmobile riding boot. Temperature rating: -70C/-94F. Liner: Removable, multi-layer inner boot system featuring a polyester wool blend for improved temperature regulation. Base: EVA Midsole with integrated Arch Support and Polar Rubber Outsole. Front lacing with outside crank-buckle ankle strap to keep your foot secure and warm. Carbon fibre leathers with rip-stop nylon. Available in whole sizes only.