Terra Men's Zephyr Work Boot 85% Leather, 15% Nylon Imported Rubber sole Shaft measures approximately 6.25" from arch Heel measures approximately 1.75" Platform measures approximately 0.75" Composite toe and composite plate Polyurethane midsole and rubber outsole Full grain leather upper with nylon panels Patented terra by superfeet footbed Patented firma flex metal free techonology