Majority of Nagasaki high schools have white-underwear-only rules, study finds - Japan Today

Schools in Japan have a reputation for being particularly picky about students’ appearances, and one of the clearest examples of how detailed dress codes can be is that some have rules in place saying that students must wear plain white underwear. This isn’t a regulation that all schools in Japan have,…

Speaking of schools, why were Japanese students forced to wear white underwear as part of their dress code while American students can wear any colour of underwear? - Quora

Speaking of schools, why were Japanese students forced to wear white underwear as part of their dress code while American students can wear any colour of underwear? - Quora

School Apologizes for Asking Pupils to Lift Their Shirts Up to Check Their Underwear

Is it true that some Japanese schools have rules that force students to dye their hair color and even to wear a certain type of underwear? - Quora

Students are only allowed three sneezes in class” Japanese people share their worst school rules

What things are off limits to foreigners in Japan? - Quora

Tokyo schools drop vexing hairstyle, underwear rules - Taipei Times

Japan's rules requiring students to have straight black hair are being challenged in court. - The Washington Post

Public schools in Japan's Saga Prefecture will no longer regulate/check students' underwear color

Majority of Nagasaki high schools have white-underwear-only rules