Waterproof PU backed synthetic textile, PU coated leather overlays, Seam sealed waterproof construction, Insulation: Removable 9mm washable recycled felt innerboot with Sherpa Pile snow cuff, Midsole: 2.5mm bonded felt front plug, Outsole: Handcrafted vulcanized rubber with herringbone outsole, Sorel rated: -40 degree fahrenheit / -40 degree celsius, Shaft height: 8-1/2", Heel height: 6/7", Platform height: 1/2", Get him ready for the next hard snow when you give him these boots from Sorel. These boots are waterproof and have an innerboot that will keep him warm and dry on even the coldest days. The vulcanized rubber outsole will ensure he is surefooted in ice, snow, and rain. He will never leave the house again without grabbing these snow boots from Sorel.