Cookie preferences This website uses functional cookies, analytical cookies and marketing cookies. Below we explain the different cookies. You can choose which cookies you agree to.
Functional cookies ensure that the website functions properly. These cookies are therefore enabled by default.
Analytical cookies help us analyze the use of the website so we can continuously improve it and provide an optimal user experience.
These cookies ensure that you see advertisements that are tailored to your interests; for example on social media and external websites. If you do not accept these, you may encounter advertisements that are less relevant to you.
Cookie preferences 21RUN uses cookies and similar techniques ("cookies") to offer you an optimal user experience, to keep the website reliable and safe, to show you relevant advertisements, to measure your browsing behavior, to make our own channels more relevant and more personal and to offer you relevant advertisements on social media and external websites. Click on 'Accept cookies' to agree.
Unleash your best self every day with the On Cloudboom Max, the ultimate choice for comfort on every run. Take on your running challenge with the Cloudboom Max.
Midsole
The Cloudboom Max features the ultra-soft Helion™ HyperFoam made from Pebax®. Even when the going gets tough during your run, Helion™ HyperFoam offers a high level of energy return, so you can keep running at speed. The foam is combined with the unique CloudTec® technology. CloudTec® are the 'clouds' that absorb shock both horizontally and vertically, making your landing extra soft. As soon as your feet hit the ground, the Clouds stay firmly in place so you can continue with a powerful push-off. In addition, the midsole features the characteristic Speedboard®, a plastic plate that flexes while running and provides a responsive feel when pushing off.
Upper
The Swiss-Engineered mesh upper provides support in strategic places around the midfoot and has a high level of breathability in the forefoot. On uses recycled materials in the upper to reduce the impact on the environment.
Outsole
While running, the shoe offers good grip and traction thanks to the rubber outsole. Buy the On Cloudboom Max now and set new personal records, delivered to your home within a few days!