Product details:

Men's Revel Iv High Polar are warm winter boots from Keen that gives you a good grip on both snow and ice. With non-marking multi directional lugs for increased traction. .DRY waterproof, breathable membrane in combination with .WARM 400g Recycled PET insulation guarantees that you stay warm and comfy in temperatures down to -40 ?C. Envionmentally preferred premium leather from LWG-certified tannery. Notch in back for achilles comfort. .POLAR Traction tested on wet and dry ice. Fibre glass on polar traction throughout whole outsole for extra grip.