Leather / Mesh / Synthetic Oil- and slip-resistant non-marking rubber outsole Dual density compression molded EVA and PU midsole Moisture-wicking textile Removable metatomical PU footbed Left and right asymmetrical, non-metallic carbon-fiber toes KEEN.Dry waterproof, breathable membrane KEEN.Key-Tech full-length TPU interlocking torsional plate KonnectFit heel-capture system for a locked-in feel Dual purpose metal lace hooks CLEANSPORT NXT™ for natural odor protection Meets ASTM F1677-96 MARK II Non-Slip Testing Standards Meets ASTM F2412-17 and F2413-17 M I/75 C/75 EH Standards Meets ASTM F2913-17 SATRA Non-Slip Testing StandardsVendor Style Number: KEEN Men's St. Paul Waterproof 6" Carbon-Fiber Toe Work Boot