Men's, Carbon Fiber Toe, 8-Inch Work Boot, 10.The practical, black boot has reflective highlights so it's easily seen, and it's slip-resistant for whatever smooth and slippery surfaces you encounter.5, W, Black, FQ0911113 The footwear complies with the ASTM F2413 electrical hazard standard, which provides secondary protection against accidental electrical contact, in addition to having a rubber outsole.