During the 1986 Elfstedentocht, the then Crown Prince Willem-Alexander participated under the name W.A. van Buren, wearing a Marlboro jacket and Playboy jogging pants.
According to the Dutch news outlet AD, the prince’s participation was widely known across the Netherlands through television coverage, although the chairman and ice master of the organizing association were reportedly unaware of his involvement.
The 1986 Elfstedentocht marked a significant moment, with the future king competing alongside thousands of others in this famously challenging ice skating race. His choice of casual attire, such as the Marlboro-branded jacket and casual jogging pants bearing the Playboy logo, was noted as strikingly informal for a member of the royal family.
