Editor’s comments: The world is becoming more competitive and On running has attracted some serious global star power to highlight running. Mujinga Kambundji is a world champion, just like his sister, Data: Both are now competing for the brand, On. I must also say that both are great ambassadors for their country, Switzerland, and their new brand, On. This writer interviewed both athletes and truly appreciates their thoughtfulness and love for the sport. A smart move by the brand as the Kambundji sisters are loved in their home country.
Bringing together Switzerland’s most famous track and field sisters, world champion Mujinga Kambundji joins her sister Ditaji under their home country’s On brand banner.
ZURICH, Switzerland – February 10, 2026 – The global sportswear brand born in Switzerland is proud to announce the signing of the Swiss sports icon. Mujinga Kambundjione of the most famous athletics athletes in the world.
Kambundji, a two-time world indoor and European champion, has long been a symbol of Swiss speed. Her career includes multiple global titles, national records from 60m to 200m, two Swiss Sportswoman of the Year awards and multiple Olympic final appearances in the 100m and 200m, cementing her as one of the world’s elite sprinters.
Family business
The partnership marks a return to Swiss roots and family as Mujinga joins her sister, world champion Ditaji Kambundji, on the global roster. For the first time, Switzerland’s extremely formidable sports sisters will be powered by the same Swiss technology, standing side by side as brand ambassadors. The collaboration also comes at a defining moment in Kambundji’s personal life and career; after the birth of her first child, she is set to return to the blocks that embody the resilience at the heart of the On brand.
“Mujinga is more than the fastest woman in Switzerland. he is a pioneer who redefined the landscape of Swiss athletics, carving a path that made the professional standards of today’s athletes possible thanks to his skill,” said Flavio Caligaris, On’s Senior Director of Athlete Strategy and Partnerships. “Our partnership at On is based on taking that same passion to give back to the athletics community, ensuring the next generation has the platform they need to succeed. As she returns to the blocks as a mother, we’re proud to support her continued pursuit of medals on the world stage, proving that the biggest dreams are the ones we chase with, both on and off the track.”
A shared vision for the future
This collaboration goes beyond technical specifications. While Mujinga will work closely with On’s teams to develop the next generation of high-performance gear, a central part of the partnership, which is near and dear to both Mujinga and On, focuses on community impact. Combining his history of endurance and family with On’s innovative spirit, the partnership seeks to ignite the human spirit through movement in Switzerland, ensuring the next generation of athletes has the inspiration, gear and platform to pursue their biggest dreams.
“Joining the On family is much more than a partnership, it is the beginning of the most meaningful chapter of my career,” says Mujinga. “Now I want to show that being a mother is not the end of my athletic journey, but the beginning of something bigger. As a Swiss athlete, I have watched On change the world of running. Their commitment to innovation and the “Dream On” philosophy aligns with my own drive to push boundaries. Our goal is to inspire the next generation to believe in non-purpose. Swiss-innovated starting blocks and sharing this meaningful chapter with my sister Ditaji.”
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