Product Details + 5K ROXY DryFlight® technology for good waterproofing Fully waterproof upper materials ROXY WarmFlight® X3 technology for extra warm and breathable insulation Weather rating: Thermal insulation weather rated to -40°c / -40°f 200g thermal insulation - weather rated to -40 degrees c Upper: Waterproof treated genuine leather and suede or calf hair Upper Details: Lace up with speed hook metal eyelets and d-rings Gusseted tongue with padded collar Closure: Polyester heathered laces Insole: Faux fur lined shaft and footbed Outsole: Welt construction with cushioned foam midsole and updated aggressive ROXY alpine TPR lug bottom Heel Height: 38mm Composition Upper: 96% Leather/4% Metal, Lining: 100% Textile, Outsole: 100% Rubber