On Running Cloudtilt Sneakers combine ultra-light cushioning with a smooth heel-to-toe transition for everyday city wear and active use. Key attributes: Pearl | Fade | Mesh | CloudTec Phase® technology for a smooth heel-to-toe transition | Helion® superfoam for high energy return | Ultra-light, smooth midsole | Precision-engineered using Finite Element Analysis (FEA) | Sock‑like internal construction | Speed/quick lacing for easy on-and-off | Contrasting side logos | Dimensions & fit: Weight: 229 g | True to size. US 8 = EU/IT 39. | Check the ON size chart (USA) for exact sizing. | Composition & care: Upper: Mesh | Midsole: Helion® superfoam | Outsole: Rubber