On Running Cloud X 4 Fog Black (Instant Ship) amm j4 Known for its trusted performance

Known for its trusted performance and smooth transitions

made from a breathable mesh

Perfect for casual wear

Featuring On’s signature CloudTec® technology

On Running Cloud X 4 Fog Black (Instant Ship) amm j4 Known for its trusted performanceBuilt for athletes who move beyond the run, the On Running Cloud X 4 Fog Black blends lightweight comfort with high performance versatility. Designed with responsive CloudTec cushioning and an updated Speedboard, this trainer delivers smooth landings, explosive energy return, and enhanced flexibility for gym sessions, short runs, HIIT workouts, and all day wear. The breathable engineered mesh upper keeps airflow steady, while the sleek Fog and Black