Skechers for Work Men's Ruffneck Steel Toe Work Boot,Dark Brown,11.5 M US 100% Leather Imported Rubber sole Shaft measures approximately 10" from arch Heel measures approximately 1.25" Platform measures approximately 0.75" Boot opening measures approximately 15.75" around Steel safety toe rated ASTM F2412/2413-2011 I/75 C/75 protection