On Running Cloud Sky Trainers combine adaptive CloudTec® cushioning with a flexible Speedboard® to deliver responsive, lightweight movement for everyday activity and sport. Key attributes: Blue | Navy | Polyester | Adapted CloudTec® cushioning activates at lower weights | Flexible Speedboard® for maximum movement | Outsole adapts to biometrics to support growth | Lightweight construction | Flexible sole for natural movement | Streamlined, cloud-inspired silhouette | Low-profile trainer design | Dimensions & fit: Weight: 218 g | Composition & care: Vamp: 100% Polyester | Quarter: 100% Polyester | Tongue: 85% Polyester, 15% Polyurethane | Collar lining: 100% Polyester | Midsole: TPU Speedboard® | Outsole: Flexible rubber