On Running Cloud X 4 from On Running is a versatile training sneaker built for mixed workouts and everyday wear, featuring responsive CloudTec cushioning and an X-shaped Speedboard for improved forefoot flexibility. Key attributes: Gray | Grey | Mesh | CloudTec® cushioning | Helion™ superfoam midsole | Speedboard for forefoot flexibility | Breathable upper | Lace-up fastening | Midfoot support cage | Rubber outsole for traction | Padded heel and tongue | Perforated detailing | Low-top silhouette | Midfoot cage with star lacing system | Dimensions & fit: Regular width | Composition & care: Upper: polyester mesh | Midsole: Helion™ superfoam | Outsole: Rubber | Lining: Fabric