On Running Cloud X 4 AD training shoes combine Swiss design with lightweight, responsive cushioning for versatile training and all-day wear. The model is built to deliver breathable comfort and an energetic, springy ride. Key attributes: Gray | Technical textile | Breathable upper | Lightweight, springy CloudTec® cushioning | Exceptional comfort for training and everyday use | Reinforced stitching for added structure and durability | Streamlined silhouette | Low-cut upper | Subtly rounded toe | Discreet On logos and Swiss flag | Dimensions & fit: Sole height: 2.5cm | Sole height at the highest point: 3.5cm