AfterPay Available - Made for everything! The new and improved On Cloud X 4 is here, and is more versatile than ever before. Take on all workouts, from burpees to box jumps, in total comfort with the newly designed X-Shaped Speedboard, made from a pliable nylon blend for increased flexibility during multi-directional movements. Increased cushioning all over with a Helion Superfoam midsole, and additional padding in the collar and tongue. On's Star Lacing system pairs with the midfoot cafe to securely wrap your foot and provide a firm lockdown.