6" Smooth Leather and Ballistic Leather 100% Non-Metallic Side Zipper Nylon Mesh Lining EVA Cushion Midsole Removable F2A Polyurethane Cushion Insert with Shock Eliminator Heel Cushion Dual Density; Mountain Trail Rubber Bottom Security Friendly Composite Toe Rated ASTM F2413-05 I/75 C/75 Electrical HazardOutsole Ratings: Slip - Best Oil - Best Metal Chips - Better Heat - Better Abrasion - Better Chemicals - Best RB8674 Reebok Men's Stealth Zipper Safety Boots - Black Features: Synthetic and textile Imported Rubber sole Shaft measures approximately 5.5" from arch Heel measures approximately 2" Platform measures approximately 0.5" 6 inch side zipper boot