Talk about a tough looking, tough performing boot. The Ariat Sierra is built for men who aren't afraid to work hard and play harder. Durability has been the bragging right of this boot. Now, with Shock Shield comfort technology, add bragging rights about comfort as well. Reaching 10 inches in height this premium full-grain leather western work boot, in black with contrasting stitching, stands up to the toughest conditions. Goodyear® welt construction and an oil- slip- and heat-resisting Duratread rubber outsole with defined heel makes this boot a great choice for variety of work environments. And this boot is certified to ASTM F3445 standards for slip on wet and dry surfaces. The Shock Shield technology diffuses heel impact to reduce foot fatigue. The wide square toe houses a steel safety cap that meets ASTM F2413 I/75 C/75 protective toe classification and electrical hazard standards. These boots are the whole package, supplying style, safety and comfort.