Upper: WATERPROOF Tumbled Full Grain Leather. Construction: Direct Injection. Lining: Cosmo Aerospacer. Insole: Full Length Removable Dual Density Polyurethane "SHOCK ZONE" Footbed with Air Flow Vents. Midsole: Polyurethane. Shank: Fiberglass. Outsole: Durable Rubber Sole with 90° Heel. Special Features: ASTM F 2413-05 M/I/75/C/75 Composite Oblique Safety Toe. Electrical Hazard. Tested For and Meets CAN/CSA-Z195 18,000 Volts Electrical Shock Resistance Standard. Thoro>dri WATERPROOF System.