About this item Upper: Soft-touch comfort fabric, made using recycled polyester. Speedboard made from polypropylene, engineered for truly explosive take-offs. Midsole: Helion superfoam. Outsole: Grip rubber compound for traction on asphalt. Description Transform your running experience for the better donning the On Cloudmonster road running sneakers. Maximalist CloudTec® for big cushioning and energy on easy or longer runs