[1] The leeuwenhosen refers to the lion as the Dutch national symbol, as is the 2006 FIFA World Cup mascot Goleo VI.
During the 16 June 2006 match between the Netherlands and the Ivory Coast team, spectators wearing Bavaria-branded Leeuwenhosen were ordered to disrobe by officials in Stuttgart, and many of these Dutch supporters watched the game in their underwear.
[1] FIFA reportedly anticipated this act of "ambush marketing" and instructed officials to distribute orange shorts to fans who required them after removing the Leeuwenhosen.
Following the Netherlands-Denmark match in Johannesburg, FIFA forcibly removed 36 female fans because they wore the dresses and detained and questioned the three Dutch nationals for three hours (the other 33 were South African).
Lawyers for FIFA investigated the incident, and found that many of the tickets were distributed to the British television network ITV.