Iron Age Men's Steadfast IA0161 Work Boot 100% Leather Imported Synthetic sole Shaft measures approximately 6.5" from arch Heel measures approximately 1.5" Platform measures approximately 1" ASTM F2413 Safety Standard Compliant Electrical Hazard Protection 200 Grams of Thinsulate Hydrotex Waterproof Inner Lining Insole: Removable EVA Cushion Insert with Sponge Rubber Heel Wedge