Work hard, play hard, or both in the Blundstone Super 550 Series Boot. This rustic unisex work boot features a premium leather upper sourced from the world's best tanneries, making for a dependable, stylish shoe that will last you years. The thermo urethane outsole incorporates innovative Poron XRD into the heel strike zone to absorb shock, reduce fatigue, and alleviate lower back, leg, and feet pain.