A fundoshi is a traditional Japanese undergarment that is basically a thong for dudes. Made of a single, long piece of cloth, the fundoshi was the go-to underwear for Japanese men until the middle of the 20th century. That’s right, no boxers, no briefs, just white cotton man thongs. Thankfully, few modern men are running around Japan with a fundoshi shoved up their butt, but they are still used in many festivals to this day.
As a tribute to one of these festivals, the Hakata Gion Yamakasa Matsuri in Fukuoka, Hello Kitty can now be seen in a white fundoshi.