On have done it again. This time with more cushioning, more propulsion, and added energy return. Supercharge your run with these max cushioned, max energy road runners. Monster CloudTec The Cloudmonster 2 features On's biggest CloudTec ever. For massive cushioning, mega bounce and maximum energy. It's a monster ride on the road with an unmatched forward-rolling motion. Maximum energy return A nylon-blend Speedboard is sandwiched between a dual-density Helion superfoam midsole, which makes for softer landings and better impact absorption. Increased energy return, forward momentum, and powerful take-offs make for an irresistible road run. A sustainable step On have ramped up the recycled content with mesh on the upper made from 100% recycled polyester. The overall recycled content is 24%.