Upper Material: Full Grain Leather Toe Box/Ripstop Nylon Stitching: Triple/Double Stitching Lacing: D-Ring Speed Lacing Zipper: YKK Full Length Zipper w/Velcro Zipper Keeper Lining: Vapor Wick Lining Insole: Removable Insole Safety Toe: Steel Toe Shank: Composite Shank Midsole: PU Midsole Outsole: 1A Carbon Rubber Outsole Heel New Generation Air Heel System Resistances: Slip Resistant