SKU 9909490 Composite safety toe meets ASTM F2413-18 EH (Electrical Hazard), MT (Metatarsal Guard) standard. Durable slip-resistant Rugged Flex® rubber lug outsole for traction and safety on the job meets ASTM F3445-21 standard. Electrical Hazard footwear provides protection against live electrical currents and meets ASTM F2413-18 EH standards. Poron® XRD® soft comfort Internal Metatarsal Guard provides extra impact protection to the top of the foot. Metatarsal styles meet ASTM F2413-18 MT standards. Take on the tough jobs in the Carhartt® Rugged Flex Waterproof Internal Met Guard Comp Toe 6" Work Boot. FastDry™ Technology Lining wicks away sweat for comfort. Lace-up closure offers a secure fit. PU Strobel Pad and EVA Filler for added comfort and support. Padded tongue and collar for added support. Removable Cushion Comfort PU Insole provides comfortable support and reduce foot fatigue. Round, closed toe silhouette. Storm Defender® waterproof breathable membrane keeps outs the wet elements while creating a drier, more breathable foot environment. Style Number: CMF6720-203 (Brown Oil Tanned Leather) Imported. Product measurements were taken using size 9, width D - Medium. Please note that measurements may vary by size. Measurements: Heel Height: 1 1⁄6 in Circumference: 10 1⁄4 in Shaft: 6 in View Zappos.com Glossary of Terms Carhartt Rugged Flex Waterproof Internal Met Guard Comp Toe 6" Work Boot