Ridge Footwear Men's Dura-Max Mid Zip Composite toe Work Boot 100% Leather Imported Rubber sole Shaft measures approximately 5.5" from arch Heel measures approximately 1.75" Platform measures approximately 0.75" ASTM F2413-05 certified composite safety toe Composite stability shank Moisture-wicking lining Removable insole PU midsole Slip resistant, oil-resistant tread Dura-sole one-piece carbon rubber outsole These composite toe work boots are designed to lace up once, then zip on fast when seconds count and it's time to roll.