The LaCrosse Cold Snap Boots are built for maximum performance in cold weather conditions. 100% waterproof Dry-Core lining and Thinsulate Ultra Insulation provide protection from the elements. Full-grain leather with lightweight 900 Denier nylon upper for rugged durability. Polyurethane coated leather in high wear areas for additional abrasion resistance. Deep lug outsole with a 90-degree heel for maximum traction on the ground and when climbing ladders. The specially formulated outsole rubber won't harden in cold temperatures.