These Guide ST Performance Work Sneakers feature: Leather upper, moisture wicking nylon mesh lining, MemoryTech memory foam removable cushion footbed, slip resistant rubber outsole with R52 rebounding EVA midsole, no exposed metal on upper, steel toe, electrical hazard protection. ASTM F2413 safety standards. Warson Brands, exclusive licensee for Reebok occupational and duty/uniform footwear, is extending the Reebok reputation for athletic performance, comfort, and fitness into the work place: on the job site, factory, and in the field. Because duty isn't always a bed of roses. Material: Leather, Rubber.