On Running Cloud X 4 Fog Black (Instant Ship) amm j4 Featuring On’s signature CloudTec® technology

Featuring On’s signature CloudTec® technology

Perfect for casual wear

iconic look

each revealing an adorable HACIPUPU character inspired by colorful gummy bears

Known for its trusted performance and smooth transitions

On Running Cloud X 4 Fog Black (Instant Ship) amm j4 Featuring On’s signature CloudTec® technologyBuilt 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