Built for runners who want one shoe that handles daily training without babying their feet, the Cloud X 4 is our pick for road miles and gym cross-training alike. On's CloudTec Phase cushioning delivers a responsive, cushioned stride that doesn't go dead on longer efforts, while the engineered mesh upper moves air efficiently — a real advantage in Southern heat.
CloudTec Phase midsole provides cushioned, responsive feel that holds up through daily training miles
Engineered mesh upper promotes airflow and breathability — especially useful in humid Southeast conditions
Heel-to-toe transition is smooth and controlled, making it equally at home on roads or gym floors
Durable rubber outsole handles road surfaces and light cross-training without breaking down prematurely
Available in multiple colorways including Black/Eclipse, Glacier/Stone, Ivory/Cream, Caper/Salmon, Silver/Flame, and more — sizes 7 through 14