On Running Cloudmonster combines maximal cushioning and a propulsive rocker for long runs and high-comfort daily training. The shoe emphasizes plush underfoot feel with engineered midsole technology for a responsive ride. Key attributes: Black | Polyester | Helion superfoam midsole for cushioning | Aggressive Speedboard and rocker geometry for efficient toe-off | Rubber outsole for reliable traction | Plush sockliner for added comfort | Low-top silhouette | Sculpted high-stack midsole | Composition & care: 100% Polyester (upper and lining) | 100% Rubber (sole)