A report published September 19, 2026, details tennis legend Roger Federer's collaboration with On Holding. The report portrays the partnership as a deep co-entrepreneurial relationship, not a standard celebrity endorsement. Federer actively involves himself in product development. He reportedly visits On's labs frequently to work on prototypes and materials.

This news follows a September 18 announcement. French soccer star Kylian Mbappé will front On's new push into football apparel and cleats. This move saw the company's stock rise.

The Federer partnership deep-dive solidifies On's strategy. On leverages iconic athletes to innovate and expand into new markets. Though not a direct financial announcement, this narrative is crucial for investors. Investors track the brand's premium positioning and long-term growth potential.