On Running Cloudswift Glacier White Dirty on the outside but have so much life in them. I tried to be a runner, but I’m not (lol) there is a bit of wear on both where my Achilles rubbed. (See last photos) Light and swift with impact protection. Features Helion™ superfoam so running on hard surfaces never felt easier. Best for: short to medium road runs Weight: 7.76 oz Heel-Toe Drop: 6 mm Why choose the Cloudswift? The Cloudswift has the classic look of a running shoe. What type of support does the Cloudswift offer? From the moment you take your first steps in a Cloudswift, you will feel the tremendous arch support. What does the Speedboard do? The Speedboard™ helps you experience a rolling motion as you run, propelling you to a faster and smoother run. How does the Cloudswift compare to other On Running Shoes? These are more of a true running shoe than the On Cloud and built for an urban (road) running experience.