Purpose-built and ready for combat, Belleville Squall 400g Insulated Composite Toe Boots are designed to provide superior protection from harsh winter weather without sacrificing comfort. These U.S. Army and Air Force compliant combat boots feature 400 grams of Belleville's exclusive Cosmo Therm™ insulation that prevents the loss of body heat in frozen climates. A waterproof cattlehide leather and breathable nylon upper repels mud, snow, and ice, while a water and bloodborne pathogen proof membrane keeps your feet dry and free of disease. Unpredictable surfaces are no match for the 100% rubber Vibram® Arctic Grip outsole with deep multi-directional lugs that deliver unbeatable gripping power on virtually any terrain. Belleville Squall Military Boots meet or exceed ASTM F2412-18 and F2413-18 safety standards, making them ideal for maintainer and flight line operations.