Usaf Certification #25 Min 4-15-11 Boot Features Height: 8 (Standard Military Height) Upper Material: Smooth, Stain-Resistant Full Grain Cowhide Leather & Cordura Nylon Fabric Midsole: Cushioned Polyurethane Outsole: 100% Rubber Vibram Nav-Air Developed Specifically For Enhanced Slip Resistance Insole: Polyurethane Removable Insert Special Features Vanguard Running Shoe Sole Construction Durable Meramax Overlays On Heel & Toe To Resist Abrasion And Extend Life Of Boot Steel Toe Meets Astm 2412-05 And 2413-05 Standards For Impact & Compression And Eh Rated Gore-Tex Waterproof Fabric Bootie Made In Usa - Berry Compliant Discounted at only: US$ 198.9