The StableFlex Hiker Boot from Irish Setter provides flexibility without compromising the work boot durability. Irish Setter's unique StableFlex technology combines welt heel construction with cement construction in the forefoot and a non-metallic arch shank for amazing flexibility. The full-grain Mocha Crazy Horse leather upper features UltraDry waterproofing, while the Vibram Rubber-PU XClaim TC-4 Plus Sole is slip-resistant, oil-resistant, chemical-resistant, abrasion-resistant, heat-resistant, and non-marking so that it is safe for electrical hazards. This rugged boot is designed with a steel toe, CuShin Comfort Tongue, and a removable polyurethane footbed for comfort and durability. Rating: ASTM F2413-11, M I/75 C/75, EH.