Rubber outsole for traction during side-to side movements X-shaped Speedboard® for forefoot flex and versatility Midfoot cage provides extra support and stability Helion™ superfoam midsole for comfort and soft landings Excellent heel hold during multilateral movements Plush materials in the heel and tongue for enhanced comfort Breathable mesh upper Experience next-level comfort on your next run in the On Cloud X 4. This bold, performance running shoe is equipped with a Helion™ superfoam midsole and X-shaped Speedboard technology for an ultra-soft cushioning sensation that bounces back with maximum energy return.  Product Code: 3MF10752734