Taisuke Kumagai, 50, adjusts his son Kyuta's loincloth called a mawashi, during a training session at Komatsuryu sumo club in Tokyo, Japan, December 6, 2020. REUTERS/Kim Kyung-Hoon SEARCH "KYUNG-HOON SUMO" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Men dressed in loincloths prepare to snatch a wooden stick called "shingi" tossed by the priest during a naked festival at Saidaiji Temple in Okayama, Okayama Prefecture, Japan, February 15, 2020. The person who grabs the wooden stick is considered the "luckiest man of the year". REUTERS/Kim Kyung-Hoon/File photo TPX IMAGES OF THE DAY SEARCH "GLOBAL POY" FOR THIS STORY. SEARCH "REUTERS POY" FOR ALL BEST OF 2020 PACKAGES.

Author Hiroki Takamura, 62, wears a traditional Japanese loincloth called a "fundoshi" as he attends the annual gathering of the Irezumi Aikokai (Tattoo Lovers Association) in Tokyo, Japan, February 16, 2020. "At my past job, tattoos were not allowed so I applied foundation every morning to cover it. It took over 30 minutes every morning to cover all of my tattoos", said Takamura, who used to work as a former school administrator. REUTERS/Kim Kyung-Hoon SEARCH "KYUNG-HOON TATTOOS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Scrap yard worker Hiroyuki Nemoto, 48, wears a traditional Japanese loincloth called a "fundoshi" as he poses for a photo with his one year-old daughter Tsumugi at their house in Hitachinaka, Ibaraki Prefecture, Japan, January 10, 2020. "We may have tattoos but we are happy and bright people", said Nemoto. REUTERS/Kim Kyung-Hoon SEARCH "KYUNG-HOON TATTOOS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

Scrap-yard worker Hiroyuki Nemoto, 48, is helped by a friend to put on a traditional Japanese loincloth called a "fundoshi" before attending the annual gathering of the Irezumi Aikokai (Tattoo Lovers Association), which he organises in Tokyo, Japan, February 16, 2020. "I feel very close to other people who have tattoos, they've all gone through the same pain", said Nemoto. REUTERS/Kim Kyung-Hoon SEARCH "KYUNG-HOON TATTOOS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES

A woman sells coronavirus disease (COVID-19) protection kits, at her loincloth shop, in Riviera Palmeraie, Abidjan, Ivory Coast, March 18, 2020.REUTERS/Thierry Gouegnon

A woman sells coronavirus disease (COVID-19) protection kits, at her loincloth shop, in Riviera Palmeraie, Abidjan, Ivory Coast, March 18, 2020.REUTERS/Thierry Gouegnon

A woman sells coronavirus disease (COVID-19) protection kits, at her loincloth shop, in Riviera Palmeraie, Abidjan, Ivory Coast, March 18, 2020.REUTERS/Thierry Gouegnon

Men dressed in loincloths run around the temple after walking in purification pool during a naked festival at Saidaiji Temple in Okayama, Okayama Prefecture, Japan February 15, 2020. Picture taken February 15, 2020. REUTERS/Kim Kyung-Hoon

Men dressed in loincloths walk in purification pool before they enter a temple building to snatch a wooden stick called "shingi" tossed by the priest during a naked festival at Saidaiji Temple in Okayama, Okayama Prefecture, Japan February 15, 2020. Picture taken February 15, 2020. REUTERS/Kim Kyung-Hoon

Men dressed in loincloths cheer each other on before they enter a temple building to snatch a wooden stick called "shingi" tossed by the priest during a naked festival at Saidaiji Temple in Okayama, Okayama Prefecture, Japan February 15, 2020. Picture taken February 15, 2020. REUTERS/Kim Kyung-Hoon

Men dressed in loincloths try to snatch a wooden stick called "shingi" tossed by the priest during a naked festival at Saidaiji Temple in Okayama, Okayama Prefecture, Japan February 15, 2020. Picture taken February 15, 2020. REUTERS/Kim Kyung-Hoon

Men dressed in loincloths walk in purification pool before they enter a temple building to snatch a wooden stick called "shingi" tossed by the priest during a naked festival at Saidaiji Temple in Okayama, Okayama Prefecture, Japan February 15, 2020. Picture taken February 15, 2020. REUTERS/Kim Kyung-Hoon

Men dressed in loincloths try to snatch a wooden stick called "shingi" tossed by the priest during a naked festival at Saidaiji Temple in Okayama, Okayama Prefecture, Japan February 15, 2020. Picture taken February 15, 2020. REUTERS/Kim Kyung-Hoon

Men dressed in loincloths prepare to snatch a wooden stick called "shingi" tossed by the priest during a naked festival at Saidaiji Temple in Okayama, Okayama Prefecture, Japan February 15, 2020. Picture taken February 15, 2020. REUTERS/Kim Kyung-Hoon

Men dressed in loincloths prepare to snatch a wooden stick called "shingi" tossed by the priest during a naked festival at Saidaiji Temple in Okayama, Okayama Prefecture, Japan February 15, 2020. Picture taken February 15, 2020. REUTERS/Kim Kyung-Hoon

Men dressed in loincloths prepare to snatch a wooden stick called "shingi" tossed by the priest during a naked festival at Saidaiji Temple in Okayama, Okayama Prefecture, Japan February 15, 2020. Picture taken February 15, 2020. REUTERS/Kim Kyung-Hoon

A man dressed in loincloth reacts after he fails to snatch a wooden stick called "shingi" tossed by the priest during a naked festival at Saidaiji Temple in Okayama, Okayama Prefecture, Japan February 15, 2020. Picture taken February 15, 2020. REUTERS/Kim Kyung-Hoon

First aid workers wearing protective masks, during the outbreak of the novel coronavirus, stand next to a man dressed in loincloths during a naked festival at Saidaiji Temple in Okayama, Okayama Prefecture Japan February 15, 2020. REUTERS/Kim Kyung-Hoon

A volunteer firefighter wearing a protective mask, during the outbreak of the novel coronavirus, stands next to men dressed in loincloths during a naked festival at Saidaiji Temple in Okayama, Okayama Prefecture Japan February 15, 2020. REUTERS/Kim Kyung-Hoon

Girls wearing protective masks, during the outbreak of the novel coronavirus, talk to men dressed in loincloths during a naked festival at Saidaiji Temple in Okayama, Okayama Prefecture Japan February 15, 2020. REUTERS/Kim Kyung-Hoon

Men dressed in loincloths react as a priest splashes water on them before they prepare to snatch a wooden stick called "shingi" during a naked festival at Saidaiji Temple in Okayama, Okayama Prefecture Japan February 15, 2020. The person who grabs the wooden stick is considered the "luckiest man of the year". REUTERS/Kim Kyung-Hoon

Men dressed in loincloths march as they prepare to snatch a wooden stick called "shingi" tossed by the priest during a naked festival at Saidaiji Temple in Okayama, Okayama Prefecture Japan February 15, 2020. The person who grabs the wooden stick is considered the "luckiest man of the year". REUTERS/Kim Kyung-Hoon

A man dressed in loincloth reacts after he fails to snatch a wooden stick called "shingi" tossed by the priest during a naked festival at Saidaiji Temple in Okayama, Okayama Prefecture Japan February 15, 2020. The person who grabs the wooden stick is considered the "luckiest man of the year". REUTERS/Kim Kyung-Hoon

Men dressed in loincloths prepare to snatch a wooden stick called "shingi" tossed by the priest during a naked festival at Saidaiji Temple in Okayama, Okayama Prefecture Japan February 15, 2020. The person who grabs the wooden stick is considered the "luckiest man of the year". REUTERS/Kim Kyung-Hoon

Men dressed in loincloths take their selfie as they prepare to snatch a wooden stick called "shingi" tossed by the priest during a naked festival at Saidaiji Temple in Okayama, Okayama Prefecture Japan February 15, 2020. The person who grabs the wooden stick is considered the "luckiest man of the year". REUTERS/Kim Kyung-Hoon

A woman wearing a protective mask, during the outbreak of the novel coronavirus, walks near men dressed in loincloths during a naked festival at Saidaiji Temple in Okayama, Okayama Prefecture Japan February 15, 2020. REUTERS/Kim Kyung-Hoon

Men dressed in loincloths react as a priest splashes water on them before they prepare to snatch a wooden stick called "shingi" during a naked festival at Saidaiji Temple in Okayama, Okayama Prefecture Japan February 15, 2020. The person who grabs the wooden stick is considered the "luckiest man of the year". REUTERS/Kim Kyung-Hoon

Men dressed in loincloths walk into a purification pool before they enter a temple building to snatch a wooden stick called "shingi" tossed by the priest during a naked festival at Saidaiji Temple in Okayama, Okayama Prefecture Japan February 15, 2020. The person who grabs the wooden stick is considered the "luckiest man of the year". REUTERS/Kim Kyung-Hoon

Men dressed in loincloths walk into a purification pool before they enter a temple building to snatch a wooden stick called "shingi" tossed by the priest during a naked festival at Saidaiji Temple in Okayama, Okayama Prefecture Japan February 15, 2020. The person who grabs the wooden stick is considered the "luckiest man of the year". REUTERS/Kim Kyung-Hoon

Men dressed in loincloths prepare to snatch a wooden stick called "shingi" tossed by the priest during a naked festival at Saidaiji Temple in Okayama, Okayama Prefecture Japan February 15, 2020. The person who grabs the wooden stick is considered the "luckiest men of the year". REUTERS/Kim Kyung-Hoon

Men dressed in loincloths prepare to snatch a wooden stick called "shingi" tossed by the priest during a naked festival at Saidaiji Temple in Okayama, Okayama Prefecture Japan February 15, 2020. The person who grabs the wooden stick is considered the "luckiest man of the year". REUTERS/Kim Kyung-Hoon

A monk presides a ceremony during a naked festival where men dressed in loincloths snatch a wooden stick called "shingi" tossed by the priest at Saidaiji Temple in Okayama, Okayama Prefecture Japan February 15, 2020. The person who grabs the wooden stick is considered the "luckiest man of the year". REUTERS/Kim Kyung-Hoon

Men dressed in loincloths fall as they try to snatch a wooden stick called "shingi" tossed by the priest during a naked festival at Saidaiji Temple in Okayama, Okayama Prefecture Japan February 15, 2020. The person who grabs the wooden stick is considered the "luckiest man of the year". REUTERS/Kim Kyung-Hoon

Men dressed in loincloths try to snatch a wooden stick called "shingi" tossed by the priest during a naked festival at Saidaiji Temple in Okayama, Okayama Prefecture Japan February 15, 2020. The person who grabs the wooden stick is considered the "luckiest man of the year". REUTERS/Kim Kyung-Hoon

Men dressed in loincloths react as a priest splashes water on them before they prepare to snatch a wooden stick called "shingi" during a naked festival at Saidaiji Temple in Okayama, Okayama Prefecture Japan February 15, 2020. The person who grabs the wooden stick is considered the "luckiest man of the year". REUTERS/Kim Kyung-Hoon

Men dressed in loincloths prepare to snatch a wooden stick called "shingi" tossed by the priest during a naked festival at Saidaiji Temple in Okayama, Okayama Prefecture Japan February 15, 2020. The person who grabs the wooden stick is considered the "luckiest man of the year". REUTERS/Kim Kyung-Hoon TPX IMAGES OF THE DAY

Men dressed in loincloths prepare to snatch a wooden stick called "shingi" tossed by the priest during a naked festival at Saidaiji Temple in Okayama, Okayama Prefecture Japan February 15, 2020. The person who grabs the wooden stick is considered the "luckiest man of the year". REUTERS/Kim Kyung-Hoon

Men dressed in loincloths prepare to snatch a wooden stick called "shingi" tossed by the priest during a naked festival at Saidaiji Temple in Okayama, Okayama Prefecture Japan February 15, 2020. The person who grabs the wooden stick is considered the "luckiest man of the year". REUTERS/Kim Kyung-Hoon

A man carries a boy on his shoulders during a naked festival where men dressed in loincloths snatch a wooden stick called "shingi" tossed by the priest at Saidaiji Temple in Okayama, Okayama Prefecture Japan February 15, 2020. The person who grabs the wooden stick is considered the "luckiest man of the year". REUTERS/Kim Kyung-Hoon

A woman splashes water on men dressed in loincloths before they attend a naked festival where men dressed in loincloths snatch a wooden stick called "shingi" tossed by the priest at Saidaiji Temple in Okayama, Okayama Prefecture Japan February 15, 2020. The person who grabs the wooden stick is considered the "luckiest man of the year". REUTERS/Kim Kyung-Hoon

Traditional loincloths of Baoule, member of the centre ethnic group of the Ivory Coast, are seen in a market in Abidjan, Ivory Coast February 12, 2019. REUTERS/Thierry Gouegnon

A saleswoman shows a traditional Ivorian loincloth to her client, one of the Akan ethnic group person come from the east of the country, in Abidjan, Ivory Coast February 12, 2019. REUTERS/Thierry Gouegnon

A saleswoman of traditional Ivorian loincloths, folds one from the Wé ethnic group, people from the west of the country, in Abidjan, Ivory Coast February 12, 2019. REUTERS/Thierry Gouegnon

Participants wearing the traditional "fundoshi" or loin cloth attend an event to pick trash on the streets in Tokyo, Japan, October 5, 2017. This event was organized in an effort to promote the wearing of this traditional garb and the participants can explore self-expression and gain self-confidence by picking up garbage while wearing fundoshi. REUTERS/Kim Kyung-Hoon TPX IMAGES OF THE DAY

A participant wearing the traditional "fundoshi" or loin cloth poses as he attends an event to pick trash on the streets in Tokyo, Japan, October 5, 2017. This event was organized in an effort to promote the wearing of this traditional garb and the participants can explore self-expression and gain self-confidence by picking up garbage while wearing fundoshi. REUTERS/Kim Kyung-Hoon

A participant wearing the traditional "fundoshi" or loin cloth attends an event to pick trash on the streets in Tokyo, Japan, October 5, 2017. This event was organized in an effort to promote the wearing of this traditional garb and the participants can explore self-expression and gain self-confidence by picking up garbage while wearing fundoshi. REUTERS/Kim Kyung-Hoon

Participants wearing the traditional "fundoshi" or loin cloth attend an event to pick trash on the streets in Tokyo, Japan, October 5, 2017. This event was organized in an effort to promote the wearing of this traditional garb and the participants can explore self-expression and gain self-confidence by picking up garbage while wearing fundoshi. REUTERS/Kim Kyung-Hoon

A female participant wearing the traditional "fundoshi" or loin cloth attends an event to pick trash on the streets in Tokyo, Japan, October 5, 2017. This event was organized in an effort to promote the wearing of this traditional garb and the participants can explore self-expression and gain self-confidence by picking up garbage while wearing fundoshi. REUTERS/Kim Kyung-Hoon

A participant wearing the traditional "fundoshi" or loin cloth attends an event to pick trash on the streets in Tokyo, Japan, October 5, 2017. This event was organized in an effort to promote the wearing of this traditional garb and the participants can explore self-expression and gain self-confidence by picking up garbage while wearing fundoshi. REUTERS/Kim Kyung-Hoon

Participants wearing the traditional "fundoshi" or loin cloth attend an event to pick trash on the streets in Tokyo, Japan, October 5, 2017. This event was organized in an effort to promote the wearing of this traditional garb and the participants can explore self-expression and gain self-confidence by picking up garbage while wearing fundoshi. REUTERS/Kim Kyung-Hoon

A participant wearing the traditional "fundoshi" or loin cloth attends an event to pick trash on the streets in Tokyo, Japan, October 5, 2017. This event was organized in an effort to promote the wearing of this traditional garb and the participants can explore self-expression and gain self-confidence by picking up garbage while wearing fundoshi. REUTERS/Kim Kyung-Hoon

A participant wearing the traditional "fundoshi" or loin cloth attends an event to pick trash on the streets in Tokyo, Japan, October 5, 2017. This event was organized in an effort to promote the wearing of this traditional garb and the participants can explore self-expression and gain self-confidence by picking up garbage while wearing fundoshi. REUTERS/Kim Kyung-Hoon

A participant wears the traditional "fundoshi" or loin cloth which has a pocket for a smart phone as he attends an event to pick trash on the streets in Tokyo, Japan, October 5, 2017. This event was organized in an effort to promote the wearing of this traditional garb and the participants can explore self-expression and gain self-confidence by picking up garbage while wearing fundoshi. REUTERS/Kim Kyung-Hoon

A participant wearing the traditional "fundoshi" or loin cloth attends an event to pick trash on the streets in Tokyo, Japan, October 5, 2017. This event was organized in an effort to promote the wearing of this traditional garb and the participants can explore self-expression and gain self-confidence by picking up garbage while wearing fundoshi. REUTERS/Kim Kyung-Hoon

Participants wearing the traditional "fundoshi" or loin cloth attend an event to pick trash on the streets in Tokyo, Japan, October 5, 2017. This event was organized in an effort to promote the wearing of this traditional garb and the participants can explore self-expression and gain self-confidence by picking up garbage while wearing fundoshi. REUTERS/Kim Kyung-Hoon

Participants wearing the traditional "fundoshi" or loin cloth attend an event to pick trash on the streets in Tokyo, Japan, October 5, 2017. This event was organized in an effort to promote the wearing of this traditional garb and the participants can explore self-expression and gain self-confidence by picking up garbage while wearing fundoshi. REUTERS/Kim Kyung-Hoon

Participants wearing the traditional "fundoshi" or loin cloth prepare to attend an event to pick trash on the streets in Tokyo, Japan, October 5, 2017. This event was organized in an effort to promote the wearing of this traditional garb and the participants can explore self-expression and gain self-confidence by picking up garbage while wearing fundoshi. REUTERS/Kim Kyung-Hoon

Participants wearing the traditional "fundoshi" or loin cloth attend an event to pick trash on the streets in Tokyo, Japan, October 5, 2017. This event was organized in an effort to promote the wearing of this traditional garb and the participants can explore self-expression and gain self-confidence by picking up garbage while wearing fundoshi. REUTERS/Kim Kyung-Hoon

Participants wearing the traditional "fundoshi" or loin cloth prepare to attend an event to pick trash on the streets in Tokyo, Japan, October 5, 2017. This event was organized in an effort to promote the wearing of this traditional garb and the participants can explore self-expression and gain self-confidence by picking up garbage while wearing fundoshi. REUTERS/Kim Kyung-Hoon