Dr. Comfort Men's Flex-OA Roy Orthopedic Athletic Shoes Comfort Men's Roy Lace-Up Shoes Patented X-Sole Relief Technology incorporates specially designed flex zones in the outsole that allow for natural, barefoot-like movement Biomechanical design promotes a better walking gait to help reduce pressure on the knee; great for those with osteoarthritis pain Leather upper with lace-up styling and a toggle closure allows you to adjust the fit