Approved For Flight By The U.s. Army And U.s. Air Force, This Gore-Tex Lined Waterproof Boot Is Multi-Functional And Is Perfectly Suited For Both Air And Ground Combat Use. The Lace-To-Toe Design Also Allows For A Better, Customized Fit For Increased Stability And Support. Boot Features 100% Cattlehide Leather & Nylon Fabric Upper Vanguard Sole Construction Combining A Cushioned Direct Injected Midsole With A 100% Rubber Vibram Sierra Outsole Gore-Tex Waterproof Fabric Bootie Soft Removable Insole 8" Height Made In Usa & Berry Compliant U.s. Army & U.s Air Force Flight Approved Ar 670-1 Compliant