Innovative performance to match, mile after mile The ninth generation of our award-winning Clifton collection is launched, lighter and more cushioned than ever. The new Clifton 9 is lighter while gaining 3 mm thickness at the level of the sole. It offers the experience of unprecedented cushioning thanks to a new responsive foam and an improved outsole design. The clean rear upper is carefully crafted with a plush heel, reflective overlay and a contoured tongue with a medial gusset on one side.