Upper: Black Full Grain Leather/Black Action Leather. Construction: Cement. Lining: Two Zone Wicking, mesh WATERPROOF System. Insole: Removable Dual Density Polyurethane ''SHOCK ZONE'' Footbed with Air Flow Vents. Shank: Engineered Composite. Outsole: Z-Trac ASR rubber with integrated EVA impact pads. Special Features: 100% Non-Metallic. ASTM F2413-11 M I/75/C/75 COMPOSITE SAFETY TOE. EH Rated. Tested For and Meets CAN/CSA-Z195 18,000 Volts Electrical Shock Resistance Standard. Heavy Duty YKK Side Zipper. Slip Resisting.