Full Grain Premium 2.2mm Cowhide Waterproof LeatherOil & Acid Resistant Outsole w/Non-Skid & Non-Marking TreadDouble Zipper Front, Welt ConstructionPull String Accent w/ Milwaukee Signature HardwareSmart Mask Climate Control Insole w/ Flex Power Toe DesignLinings are Moisture Wicking, Anti-Fungal, Anti-BacterialSize: 5-11