Upper: Full Grain Leather. Construction: Cement. Lining: Moisture Wicking Comfort Weave. Insole: Full Length Removable Polyurethane Footbed. Midsole: Compression Molded EVA with Impact 300 Gel Heel Insert. Shank: Engineered Composite. Outsole: A.S.R. Super Slip Resisting Rubber. Special Features: 100% Non-Metallic. ASTM F2413-11 M I/75/C/75/Mt/75 COMPOSITE SAFETY TOE. EH Rated. Tested For and Meets CAN/CSA-Z195 18,000 Volts Electrical Shock Resistance Standard. Patented I-Met2 Technology.