Reebok Duty RB821 Hyper Velocity - Women's 8" UltraLite Performance Boot that is AR670-1 Compliant and has Electrical Hazard Protection, Foot ForceA(R) Removable Cushion Footbed and Side Air Vents. Specifications: Type 8" UltraLight Performance Boot Toe Soft Toe Upper Cattlehide Leather and Ballistic Nylon Color Coyote Lining Nylon Mesh Insole Removable F2A Polyurethane Cushion Insert Outsole Dual Density; Rubber Bottom and Lightweight Injected EVA Cushion Midsole Special Feature AR670-1 Compliant, 100% Non-Metallic, Extremely Lightweight and Flexible, Side Air Vents