On Running Cloudmonster 1 Waterproof combines exaggerated cushioning with a waterproof upper for comfortable, all-day wear. Designed for cushioning and energy return, it suits everyday runs and wet-weather use. Key attributes: Gray | Grey | Polyester | Waterproof upper | CloudTec cushioning system | Helion foam | Speedboard for energy return | Standard lacing | Hidden eyelets | Dimensions & fit: Heel-to-toe drop: 6 mm | Weight: 348.3 g | True to size | Composition & care: Polyester