Behold the most comfortable athletic shoe in history. It's On Running's Cloudmonster 2, and it has more cushioning, more energy return, and more propulsion than ever before. A dual-density Helion superfoam midsole delivers softer landings and impact absorption. And like all On Running shoes, you will feel like you are walking on clouds the minute you slip into them. I got the wrong size, so this pair has only been worn a few times, and they are in "like new" condition.