Switzerland's Fastest Woman is On: Mujinga Kambundji Joins Global Athlete Roster
Uniting Switzerland's most celebrated track and field sisters, World Champion Mujinga Kambundji joins her sister Ditaji under the banner of their home country's brand, On.
ZURICH, Switzerland – February 9, 2026 – On, the Swiss-born global sportswear brand is proud to announce the signing of Swiss sports icon Mujinga Kambundji, one of the world's most decorated track and field athletes.
Kambundji, a two-time World Indoor and European Champion, has long been a symbol of Swiss speed. Her decorated 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, solidifying her as one of the world's elite sprinters.
A Family Affair
The partnership marks a return to Swiss roots and family, as Mujinga joins her sister, World Champion Ditaji Kambundji, on the On global roster. For the first time, Switzerland’s highly formidable sporting sisters will be powered by the same Swiss technology, standing side by side as ambassadors for the brand. The partnership also comes at a defining moment in Kambundji’s personal life and career: following the birth of her first child, she is preparing for a return to the blocks that embodies the resilience at the heart of the On brand.
“Mujinga is more than Switzerland’s fastest woman; she is a pioneer who redefined the landscape of Swiss athletics, carving a path so that the professional standards today’s athletes take for granted were made possible by her grit. At On, our partnership is built on taking that same trailblazing 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 are proud to support her continued pursuit of medals on the world stage, proving that the greatest dreams are those we chase together, both on and off the track.” — Flavio Calligaris, Senior Director of Athlete Strategy and Partnerships at On
A Shared Vision for the Future
This partnership goes beyond technical specs. While Mujinga will collaborate closely with On’s teams to develop the next generation of high-performance gear, a central part of the partnership—near and dear to both Mujinga and On—is the focus on community impact. By integrating her story of resilience and family with On’s innovative spirit, the collaboration seeks to ignite the human spirit through movement across Switzerland, ensuring the next generation of athletes has the inspiration, the gear, and the platform to chase their biggest dreams.
“Joining the On family is much more than a partnership; it's the beginning of the most meaningful chapter of my career. I now want to show that being a mother isn’t the end of my athletic journey, but the start of something even greater. As a Swiss athlete, I’ve watched On transform the world of running. Their commitment to innovation and “Dream On” philosophy aligns with my own drive to push boundaries. Our goal is to inspire the next generation to believe that no dream is too big to pursue. I can’t wait to step into the starting blocks powered by Swiss innovation, and sharing this meaningful chapter with my sister, Ditaji.”
Media Assets
High-resolution images for editorial use are available for download here. (© On).
About On
On was born in the Swiss Alps in 2010 with the mission to ignite the human spirit through movement – a mission that still guides the brand today. Sixteen years after market launch, On delivers industry-disrupting innovation in premium footwear, apparel and accessories for high-performance running, outdoor, training, all-day activities and tennis. On’s award-winning CloudTec® and LightSpray™ innovation, purposeful design and groundbreaking strides within the circular economy have attracted a fast-growing global fan base – inspiring humans to explore, discover and Dream On.
On is present in more than 80 countries globally and engages with a digital community on www.on.com.