Caterpillar Second Shift - Steel Toe - Men。Classic ruggedness and durable reliability are all wrapped up into the fine construction of the 2nd Shift Steel Toe boot from Caterpillar. Dark Brown. Rugged work boot with lace-up design. Full grain leather or nubuck leather upper. Nylon mesh lining. Climasphere insole creates a drier, more odor-resistant environment. Goodyear welt construction provides excellent durability and flexibility. Slip-resistant rubber outsole meets MARK II testing standards. Steel safety toe meets ASTM F2413-11 I/75 C/75, impact and compression EH (Electrical Hazard) standards. Men\'s size 11.5 and 13 available. Approximate Measurements: Heel Height: 1 1⁄2 in Weight: 2 lbs Shaft: 6 1⁄2 in Platform Height: 3⁄4 in Box included.