hachimaki
A type of Japanese headband made of cloth or twine worn to signify dedication to extreme effort.
A plane hachimaki is commonly used in a sports day / festival of Japanese school to indicate the team color and to try to increase their motivations / kiai (気合, "fighting spirit").
Another common type of hachimaki is printed a red circle of Japanese flag or previously rising sun emblem or / and a short inspirational slogan meant to be displayed across the forehead.
If the headband is twisted, that is called a nejiri hachimaki which is commonly worn by participants of a Japanese festival.
Examples
- Danbooru post #7846176: Red and white hachimakis are worn in the sports day at school.
- Danbooru post #5612240: A red hachimaki with a gakuran.
- Danbooru post #7552466: Wearing a white hachimaki with a red circle and a short slogan as a part of an ouendan uniform.
- Danbooru post #7604955: Wearing a hachimaki in order to boost her motivation.
- Danbooru post #7585504: Wearing a hachimaki with a message to the idol her cheering.
- Danbooru post #7937430: nejiri hachimaki | A traditional hachimaki worn during festivals (often with a mizu happi).