On September 20, Beijing Time, before Real Madrid's away match against Atlético Madrid, Mbappe warmed up in a pair of all-white On football boots that have not yet been officially released.

On September 18, Swiss sports brand On officially announced its entry into the football market and its collaboration with Mbappe. According to On's official statement, Mbappe is a global partner of the brand and has been involved in the testing and development of On's first football boot.

During the warm-up before the match against Atlético Madrid, Mbappe wore the all-white On football boots, which remain in the pre-release stage.

This was not the first time Mbappe has publicly worn On football boots. Before Real Madrid's final training session ahead of the Madrid derby on September 19, he trained in an all-white On prototype. According to A Bola, Mbappe had been secretly testing the prototype for several weeks, and the September 19 training session marked the first time he wore the boots in a public setting.

On officials stated that they have been developing football products with Mbappe for the past year. The first football boot is still in development, with the initial product line planned for official release in 2027.

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