On Cloudspike Amplius 2 - Mens Size:11 (US) From years of research we

From years of research we know that our lab-measured improvements in running energetics translate to faster race times

you'll experience a higher energy return and an extended stride length

OOfoam™ technology absorbs 37% more impact than traditional footwear

and inconceivably light

The convertible mitten design adds an extra layer of warmth when you need it most

On Cloudspike Amplius 2 - Mens Size:11 (US) From years of research weYour long distance track spikes. A perfect combination of cushioning and energy return for races up to 10,000m. Key features Weight: 157. 3g Highly responsive Helion HF hyper foam midsole Massive energy return Lightweight one piece upper Five spikes For long distance track events Nylon blend Speedboard for midfoot stability World Athletics approved forefoot stack height below 20 mm Powered by Helion HF