The gi used in Brazilian Jiu-Jitsu was adapted from the uniform commonly used in Japanese martial arts. The gi is used to represent street clothes, but also withstand rigorous training for years. The term kimono is sometimes used to describe the whole outfit, or occasionally just the jacket.
The only colors allowed for international championships are white, black or blue. In some jurisdictions this is relaxed to allow any single solid color.
Patches may only be affixed in authorized regions of the gi, as depicted in the illustrations below. They should be of cotton fabric and properly seamed. All patches unseamed or in unauthorized regions of the gi will be removed by the gi inspectors.
Permitted: a gi brand tag in the front lower part of the pants (according to illustration). The tag must be made of a thin fabric (not embroided) and be at most 36 cm.
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