On Running Cloudmonster pairs maximal CloudTec® cushioning with a Speedboard for explosive rebound and a propulsive, enjoyable running feel. Key attributes: Black | All black | Polyester | Maximum cushioning | High energy return and rebound | Propulsive ride | Drop: 6 mm | Speedboard for energetic toe-off | Standard lace closure | Cushioned insole for comfort | Pronounced arched rocker for natural roll-off | Mesh upper construction | Maxi CloudTec® cushioning pods | Dimensions & fit: Weight: 275 g | Drop: 6 mm | Composition & care: Upper: 100% polyester | Midsole: Helion™ superfoam | Speedboard: nylon blend | Outsole: rubber