On Running Cloudswift 4 AD combines responsive Helion cushioning with a water-repellent engineered-mesh upper for city-focused performance and all-day comfort. Key attributes: Black | Engineered mesh | Water-repellent finish on the upper | Breathable technical mesh | Multi-density Helion superfoam midsole for soft, responsive cushioning | Updated cage construction for greater midfoot stability | Nylon-blend Speedboard for a smooth, energetic ride | Rubber outsole for optimal grip | Sock-like, wraparound bootie construction | Engineered mesh upper with modern aesthetic | Updated cage construction for cleaner midfoot profile | Dimensions & fit: Weight: 307 g | Heel-to-toe drop: 8 mm | Regular fit — US 10 corresponds to EU/IT 44. Consult the ON Footwear USA chart to find the perfect size. | Composition & care: Engineered mesh (upper) | TPU | Helion superfoam (midsole) | Nylon-blend Speedboard | Rubber (outsole)