Belleville 633 ST Sabre Hot Weather Hybrid Assault Boots Mens Sz 9.5-10.5 R USAF 8" Height Steel Toe ASTM Rated F2412-11 and F2413-11 Berry Compliant Flesh Out Suede Leather and Nylon Fabric Soft, Shock-absorbet polyurethane Vibram Ibex outsole for rugged terrain Premium polyurethane removable insert Low profile sole reduces weight &improves mobility Sharp angled lugs and defined heel maximize traction Deeply serrated toe bumper aids in vertical climbing & crawling Rappelling bars on outsole