Iron Age Men's Hauler IA0194 Work Boot 100% Leather Imported Synthetic sole Shaft measures approximately 6.5" from arch Heel measures approximately 1.25" Platform measures approximately 0.75" Boot opening measures approximately 15.5" around ASTM F2413 Safety Standard Compliant Electrical Hazard Protection Insole: Removable F2A Polyurathane Cushion Insert 100% Non-Metallic Airport Friendly PermaBond Outsole Construction