The Nautilus Tempest Mid CT work shoes will make sure you stay comfortable, protected, and confident all through your work day. Lightweight carbon nanofiber safety toe meets or exceeds ASTM 2413-11 I/75 C/75 impact and compression specifications. Durable, waterproof textile upper. Heel and toe guards for added durability. Traditional lace-up system with sturdy eyelets and fabric laces for a secure fit. Breathable textile lining for a comfortable fit. Removable double-cushion insole. Double-cushioned Trilogy Dual-Density PolyLite high-rebound midsole. Durable rubber outsole that is slip resistant with .38 Mark II slip rating. Style number: N1051 (Black).