DESIGN: Square toe 1 1/2" Rocker heel Full-grain leather with ventilated shaft to promote maximum air flow IN-SHOE COMFORT: Air mesh lining Rolled shank area Fiberglass shank Durango(R) X-Treme Comfort removable polyurethane insole with Memory Foam DURABILITY & TRACTION: Waterproof membrane Double row sole stitch Dual-Density Midsole with firmer shock absorbing heel for added stability and a soft shock absorbing forepart for ultimate flexibility and comfort Anti-torsion rigid external shank provides added lateral stability Multi-Durometer Rubber Outsole with high abrasion rubber outer lugs for high-impact durability and softer durometer mid lugs for added flexibility and increased slip and oil resistance Electrical hazard boots meet and exceed ASTM electrical hazard standards High abrasion heel counter