Heavily Insulated With 600G Of Thinsulate Insulation, This All Full-Grain Leather Steel Toe Boot Also Offers Ultimate Waterproof Protection And Superior Slip Resistance In Icy Conditions Through The Use Of The Vibram Fire & Ice Outsole Made Of A Special Rubber Compound That Will Not Harden In Cold Temperatures. Boot Features 100% Cattlehide Leather Upper Vanguard Sole Construction Combining A Cushioned Direct Injected Midsole With A Vibram Fire & Ice 360 Lug Outsole For Superior Traction In Icy Conditions 600G Thinsulate Insulation Gore-Tex Waterproof Fabric Bootie Steel Toe Is Astm F2412-11 And F2413-11 Certified And Eh Rated Soft Removable Insole 8" Height Made In Usa & Berry Compliant