They are extremely durable

while also ensuring that the boot fits snugly against your calves

Adjustable calf insert widens up to 7 cm

memory foam cushioning keeps you comfortable

Estimated max calf circumference 39cm/ 15

Unisex Arctic Sport Stiefel | Black/Black Vibram® Arctic Grip All Terrain They are extremely durableThe Arctic Sport is our high rubber boot for extreme winter weather conditions. These boots provide the ultimate in thermal insulation in extreme cold with their soft fleece lining and 5mm neoprene inner boot. The stretch binding at the cuff ensures that the boot fits snugly against the legs, keeping cold air out and warm air in, while also adapting perfectly to wider calf circumferences. These high quality sporty boots feature a molded EVA sole for