Cloud X 4

Designed for athletes who blur the lines between running, strength, and studio work, the On Cloud X 4 brings elevated cushioning and multidirectional agility to your full training calendar. While today’s trainers continue to soar in stack height, the Cloud X 4 intentionally strikes a middle ground—plush enough for comfortable mileage, yet low-profile and connected enough for HIIT circuits, plyometrics, treadmill days, and everything in between. Helion™ foam softens landings without dulling ground feel, and the new X-shaped Speedboard® delivers both propulsive toe-off and lateral flexibility for quick, confident movement in all planes.

For traction and durability, a strategic mix of exposed midsole and placed rubber pads keeps grip where athletes need it, cutting weight everywhere else. Up top, the ultra-breathable upper made from 100% recycled polyester wraps securely without excess structure, making it equally at home in the gym, on the turf, or out on summer mileage. Sleek, stable, and cross-discipline ready, the Cloud X 4 is built to move the way modern training actually looks—varied, fast, and never one-dimensional.

MIDSOLE

• Helion foam cushioning delivers softer landings while still keeping you connected to the ground.
• X-shaped Speedboard offers flexibility when needed along with a snappy underfoot experience during faster running efforts.

OUTSOLE

• Rubber Pads are strategically placed throughout the outsole for enhanced grip.

UPPER

• Mesh upper is made up of 100% recycled materials and offers a breathable fit. The yarn is dope dyed, which means that the process requires 90% less water.