On Running's Cloud Sky Trainers update the Cloud silhouette with responsive CloudTec® cushioning and a flexible Speedboard® for smooth, agile movement in everyday wear. Key attributes: Blue | Navy | Polyester | Adapted CloudTec® activates at lower weights | Lightweight construction | Flexible Speedboard® for maximum movement | Special outsole adapts to foot biometrics to support growth | Cloud-inspired sole architecture | Sleek trainer silhouette | Dimensions & fit: Weight: 218 g | Composition & care: Vamp: 100% Polyester | Quarter: 100% Polyester | Tongue: 85% Polyester, 15% Polyurethane | Collar lining: 100% Polyester