Caterpillar Second Shift - Steel Toe - Men's Work Boot 。Hard work is at the heart of the Second Shift steel toe work boot. With classic styling and rugged detailing, this iconic basic boot tackles a number of jobs while delivering protection, comfort and durability. The strength of the Goodyear Welt Construction provides flexibility in the forefoot while keeping the feet and legs comfortable for all-day wear. ASTM F2413-11 I/75 C/75 steel toe protects against impact and compression ASTM F2413-05 1/75 EH electrical hazard protection rated to protect against open circuits up to 600-Volt in dry conditions Full grain leather upper delivers long-term durability and protection Nylon mesh lining for added breathability T3 rubber outsole delivers slip resistance for optimal traction