The Outhaul Mid from Caterpillar is a work boot that features iTechnologyâ„¢ which combines the durability of a goodyear welt with an athletic cup heel for athletic shoe comfort. This boot is also rated ASTM F2413-05 for protection from electrical hazards of up to 600 volts and features a composite safety toe that is undetectable in electronic security environments. The upper is a leather mesh and the lining is a nylon mesh which allow for foot breathability. The midsole features EVA heel cushioning and the outsole is a slip resistant sole to reduce the risk of slips and falls.