Belleville 695Approved by the U.S. Air Force, the Belleville 695 can be worn during flight and with the Airman Battle Uniform (ABU). The eight-inch tall boot has a durable upper made of full-grain cowhide and nylon fabric. Providing cushion and support, the midsole is composed of polyurethane. It has a Vanguard running shoe sole construction. The Vibram Fire and Ice compound of the outsole improves traction in icy conditions. The Gore-Tex waterproof fabric bootie and the 200 grams of Thinsulate insulation offer an extra measure of protection from the elements. For the servicemen and women of the U.S. Air Force, there is no better choice than this cold weather boot.