Designed by Athletes, for Athletes
Meet the lightest shoe in the ON Cloudmonster family—engineered for max cushioning and explosive rebound with a dual-foam midsole that delivers next-level performance.
CloudTec® Meets Helion™ HF: Maximum Cushioning with a Kick
Extreme CloudTec® combines with Helion™ HF hyper foam for an ultra-responsive ride. The dual-foam midsole absorbs impact and provides plush cushioning, while Helion™ HF in the forefoot energises every stride with powerful rebound. It’s the same cutting-edge foam found in ON's top racing models, like the Cloudboom Echo 3.
Lighter, Faster, More Responsive
ON removed the Speedboard® to reduce weight and promote faster post-training recovery. Instead, Helion™ HF hyper foam acts as a natural bounce board, propelling you forward for maximum energy return, superior cushioning, and hyper performance.
Locked-In Fit, Seamless Comfort
Stay secure and supported with high-grip laces woven with silicone and reworked eyestays for a locked-in feel—even during explosive take-offs. A breathable microfibre upper, made from recycled polyester, moulds seamlessly around your foot for a customised, barely-there fit.
Technical Features
- Best for: Running, Marathon, Road Running
- Heet to Toe Drop: 6mm
- Weight: 265g
- Max cushioning meets Helion™ HF for max energy return
- Forward-rolling, agile and fast
- Dual foam construction to maximise cushioning levels
- High-grip laces woven with silicone keeps you locked in
- Helion™ HF absorbs impact and gives maximum rebound
- A microfibre upper delivers breathability
- Developed with professional athletes
