On Running Cloud X 4 AD "Black Asphalt". From morning jogs to coffee runs, these lifestyle trainers are a versatile go to for all workouts. With a black mesh upper and subtle logos, they strike the perfect balance between performance and simplicity. CloudTec Phase® cushioning and Speedboard® technology work to deliver comfort and support with every step. Light, cool and breathable with a mesh upper Comfort and support with CloudTec cushioning Raised collar edges and a wide base for top stability.