Nowadays, the fundoshi is mainly used not as underwear but as festival (matsuri) clothing at Hadaka Matsuri or, sometimes, as swimwear. ==Types and uses== The fundoshi is first mentioned in the classic Japanese history text the Nihongi. They are also depicted on clay figures, haniwa. The fundoshi was the underwear of choice of every Japanese adult... Found on http://en.wikipedia.org/wiki/Fundoshi