The traditional Japanese breechcloth.
Both loincloth and fundoshi nowadays are used as festival clothing (usually with happi, or alone) , as a swimsuit (when worn at the beach) and occasionally, as underwear (usually worn under kimono, or Japanese armor etc). Make sure to use the appropriate tag when tagging them.
This tag implicates japanese_clothes (learn more).
The following tags implicate this tag: fundoshi_aside, fundoshi_pull, and fundoshi_under_pantyhose (learn more).