The Nautilus Zephyr CT work sneaker is ready to get the job done. Equipped with a durable textile upper and a traditional lace up closure, this work shoe will keep you in plush comfort with every step. Carbon Nanofiber composite toe meets or exceeds ASTM 2413-18 Impact/Compression 75 lbf and EH (Electrical Hazard) safety standards. Traditional lace-up system with sturdy eyelets and fabric laces for a secure fit. Round toe. Abrasion-resistant rubber toe bumper for added protection. Breathable textile lining for a comfortable fit. Removable dual-density EVA footbed for superior underfoot support and comfort. Rear pull tab for easy on/off. Slip-resistant rubber outsole meets Mark II Oily Wet Slip Rating of .58.