Blundstone: Super 550 Series Boot(Adult Unisex)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. Each pair comes with two sets of antimicrobial PORON XRD and EVA removable footbeds for enhanced cushioning and a perfect fit every time. Side elastic goring and dual front and back pull tabs make for easy on-and-off.