Style LPW27. Genuine leather upper. 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