Belleville 600ST USAF Sage Green Hot Weather Steel Toe 8" Combat Boot leather-and-rubber Vibram sole Shaft measures approximately Mid-Calf" from arch Designed by Belleville Shoes in conjunction with the special forces community to provide a sturdy, rugged boot that gives excellent ground feel and mobility. Steel Toe  Meets ASTM F2412-05 and F4213-05 Standards. 100% rubber VIBRAM Sierra outsole with VANGUARD running shoe sole construction. U.S. Air Force Uniform Approved. Sage Green Leather / CORDURA Nylon Fabric upper.