These are the gentleman’s dress shoes with a patented sole that helps to relieve knee pain. Developed with rheumatology experts, the shoes employ flexure zones built into the outsoles, proven in a study at Rush University Medical Center in Chicago to reduce knee load by 20%, essential for slowing the progression of osteoarthritis. Strategically placed to enable normal motion, the soles’ flexure zones provide natural, barefoot-like flexibility with the support of modern footwear. EVA insoles provide comfort with every step, from forefoot, arch, and heel while the rubber outsoles ensure an even, reliable grip while walking. Their leather uppers keep feet dry and comfortable. Medium width. If in between sizes please order the next size up. Men’s. Black. Sizes 8-14. (3 oz.)