On Cloudspike 10,000M men's Size:8.5 Unlock your fastest self in

Unlock your fastest self in the Cloudspike Citius 2 and break barriers from 800m to 1600m

Sleek styling

Engineered with an aggressive forefoot rocker and ultra-responsive dual-density PEBA midsole with snappy carbon fiber plate

Advanced reflective details designed to help support visibility in low-light conditions

Fit for the world's fastest

On Cloudspike 10,000M men's Size:8.5 Unlock your fastest self inRACE LEGAL RESPONSIVENESS. Stand out from the pack. Engineered with OAC, On Athletics Club, athletes to reduce impact as your laps accumulate, the Cloudspike 10000m combines CloudTec cushioning with Helion HF, a new Pebax hyper foam, for supreme energy return you can feel. The unique full length Speedboard is a blend of fiberglass nylon that catapults you forward. Fused between Cloud elements in the forefoot, it sets you up for a powerful take off.