On September 18, 2026, Kylian Mbappé ended a 15-year relationship with Nike and signed with a Swiss sports brand, marking the first time a Ballon d'Or contender has left the duopoly for an outside boot sponsor since Cristiano Ronaldo's brief CR7 footwear venture collapsed in 2014. The deal, announced via Instagram post showing Mbappé lacing unfamiliar boots in Real Madrid's Valdebebas training complex, represents the largest defection from Nike's football portfolio since the company lost Neymar to Puma in 2020 for a reported €25 million annually.
The Swiss brand is On Running, a Zurich-based performance footwear company that went public on the New York Stock Exchange in September 2021 at a $6.6 billion valuation and has since grown its market cap to $14.2 billion as of September 2026. On has no prior professional football boot line. The company built its reputation on CloudTec cushioning technology for marathon runners and signed tennis player Iga Świątek in 2023, but has never manufactured a cleat. The Mbappé deal includes an equity stake—rumored at 1.2% of the company, worth approximately $170 million at current share price—plus an annual cash component estimated at €18 million over five years, according to sources familiar with the contract who requested anonymity because terms are not public.
This matters because the deal reframes athlete endorsement structure at the top of the market. Nike's standard elite football contract pays €15-20 million annually in cash but offers no equity. Adidas offered Mbappé €22 million per year in 2025 renegotiations, still no ownership. On's hybrid structure mirrors the shift seen in US athlete deals—LeBron James holds equity in Fenway Sports Group, Stephen Curry in Under Armour, Tom Brady in Autograph—but has not yet penetrated European football at this tier. If On successfully launches a cleat line by spring 2027, as the contract requires, and Mbappé wears it in Champions League knockout rounds, the company enters a €3.2 billion global football footwear market currently split 62% Nike, 31% Adidas, 7% others, per Euromonitor. The equity component also derisks Mbappé's income against injury: his Nike deal paid only if he played; the On equity vests regardless.
The timing is not random. Mbappé has controlled his image rights independently since leaving PSG for Real Madrid in 2024, a renegotiation that cost PSG €55 million in deferred payments but freed him from club-managed sponsorship clauses. His management team, led by his mother Fayza Lamari and attorney Delphine Verheyden, has since launched KM7 Ventures, a family office that has taken stakes in a Monegasque hospitality group, a Paris-based AI sports analytics firm, and now On. The September 18 announcement follows a July sighting of Mbappé and On co-founder David Allemann at a private dinner in Saint-Tropez, photographed by *Paris Match*, wearing matching Off-White tracksuits—a signal missed by most but noted by brand-tracking accounts on X.
What to watch: On is expected to unveil its first football boot prototype at a February 2027 event in Zurich, likely featuring Mbappé in a controlled setting ahead of Real Madrid's February 25 Champions League round-of-16 first leg. Nike's response will appear in Q4 2026 earnings calls; the company has 17 other Ballon d'Or-caliber players under contract but none with Mbappé's social reach (312 million Instagram followers). Adidas may accelerate its Jude Bellingham extension talks, currently stalled at €19 million per year. Smaller brands—Puma, New Balance, Mizuno—will study On's equity playbook for their own pitches to Vinícius Júnior and Erling Haaland, both of whom have contracts expiring in 2028.
On's stock closed up 4.7% on September 18, adding $667 million in market cap before settling at +2.1% by week's end. Mbappé wore the prototype boots in a closed training session September 20; no leaks yet, but Real Madrid's kit manager has been seen measuring cleat pressure distribution with On engineers courtside.
The takeaway
Mbappé's equity-loaded On deal breaks Nike's football duopoly and sets a new contract template for athletes who can monetize ownership.
Editorial & Disclosure Notice: This article was written with artificial intelligence from public sources and is published without individual human review. Artificial intelligence and other digital tools are also used for research, analysis, editing, formatting, and production. Errors, omissions, outdated information, or inaccuracies may occur. References to companies, brands, products, services, organizations, or individuals are for informational and editorial purposes and do not imply endorsement, sponsorship, affiliation, partnership, or approval unless expressly stated. All trademarks and other intellectual property remain the property of their respective owners. Opinions, analysis, estimates, and commentary are informational only and should not be construed as financial, investment, legal, tax, medical, procurement, or other professional advice. Information may be corrected, clarified, or updated after publication. Corrections or removal requests: jenny@pops4.com.
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