An athletically motivated boot built with multiple comfort elements and big on traction. Plus, it's electro-static dissipative, which means its safe to wear around sensitive electronic equipment. . Brown Leather. K-2 Lined. Pillow Cushion(TM) Insole. C-3 DRYZ® Footbed With Gel Cell(TM) Insert. EVA Midsole. Steel Shank. Vibram® Proprietary 4x4 Outsole.