The Burly Air-Grip 800G Outdoor Boots are made of premium ozone-resistant and scent-free rubber and offer 100% waterproof protection. The premium rubber compound has a high tensile strength, which means greater tear-resistance and durability. Ankle-Fit design ensures a secure fit and comfort while walking. 800 grams of Thinsulate Ultra insulation gives insulating protection in the harshest environments to keep you warm on the coldest days in the treestand or on the ice. The self-cleaning Air-Grip outsole provides outstanding all-around traction in mud, snow and other loose terrain.