Amazon.com: Nautilus Safety Footwear Womens Guard Oxford 。Look great and stay comfortable all workday long with the protective and supportive Nautilus Safety Footwear N2150 ST work shoes. Lightweight carbon nanofiber safety toe meets or exceeds ASTM 2413-11 I/75 C/75 impact and compression specifications as well as EH (electrical hazard) safety standards. Lightweight textile mesh and leather upper provides long-lasting durability and breathability. Traditional lace-up system with sturdy eyelets and fabric laces for a secure fit. Breathable textile lining for a comfortable fit.