Style STON70, Steel Toe Oil & Slip Resistant. Genuine leather upper, EN 12568, 200 J European Standard, American ANSI ASTM F2412-11, ASTM F 2413-11, Impact I/75, Compression C/75, CSA Canadian Standard CAN/CSA-Z195-02, Soft Breathable Comfortable insert, Absorbs foot perspiration, Air in, Moisture out. Dries quickly, Keep your feet cool and fresh, Prevent foot odor. Patented Oil & Slip Resistant, Light weight Rubber Compound Non Marking Outsole, Oil & Slip Tested ASTM F 1677-05 Mark II , Electric Hazard ASTM F 2413-11. Double construction, Cemented with side stitching between Upper to out sole for durability