Compete and win.
EUR | 36 | 36.5 | 37 | 37.5 | 38 | 38.5 | 39 | 40 | 40.5 | 41 | 42 | 42.5 | 43 |
US | 5 | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 |
UK | 3 | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 |
JPN(CM) | 22 | 22.5 | 23 | 23.5 | 24 | 24.5 | 25 | 25.5 | 26 | 26.5 | 27 | 27.5 | 28 |
Compare On sizes with other shoes | On size |
Adidas | Go the same |
ASICS | Go half a size bigger |
Brooks | Go the same |
HOKA ONE | Go the same |
Nike | Go the same |
Nike Flyknit | Go half a size smaller |
Mizuno | Go the same |
Saucony | Go the same |
Live from the On Labs | The Cloudflash
For the important seconds in life.
Cushioned landing, explosive take-off
The 14 Cloud elements below the Cloudflash are shaped to transform and transfer more impact energy from the runner into fast, forward momentum.
Speedboard
The Cloudflash Speedboard, built from Pebax, is unparalleled in energy transition and fatigue resistance. It loads with impact energy to change toe-off to take-off at release.
Impossibly light mesh
The upper of the Cloudflash has one goal: deliver everything with nothing. Ultra-thin nano-mesh supported by a skeletal-structure work together to achieve impossible lightness.
Secure fit
Shaped like a race car seat, the performance heel-cap keeps your feet strapped in at high velocity. Accelerate in complete security.
Data sheet
- Gender
- Woman
- Sport
- Running
- Best for
- Going fast: Road racing, 5k, 10k, tempo training, interval training
- Weight
- 230g|8.1 oz (EUR 42)
- Heel-toe drop
- 5 mm
- Activity
- Competition
Road running
- Surface
- Road
- Cushioning
- Direct
- Stability
- Neutral
- Width
- Normal