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Brazilian jiu-jitsu gi


The gi (outfit, from Japanese 柔術着 jujutsu gi 'jiu-jitsu uniform') used in Brazilian jiu-jitsu was adapted from the uniform commonly used in Japanese martial arts. It is typically composed of a heavy cotton jacket and reinforced trousers. A cloth belt is worn over the gi, both to keep the jacket closed, and as a signifier of the skill/rank of the practitioner. 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. In many clubs it is customary for practitioners who are white belts to only wear a white gi, but once a blue belt is obtained they are free to wear any color.

According to article 8 of IBJJF rules, a competition gi must conform to these specifications:

In addition to the above requirements, pockets of any kind are not allowed in a gi used at tournaments.

A special gi checking tool is often used to determine acceptable measurements and fit of the gi. This tool resembles a block of wood 3.5 cm x 2.5 cm x 15 cm with a slit cut in the middle and is used to measure the following:

According to article 13 of IBJJF rules, patches may be placed on the gi in one of thirteen different locations:

On the jacket:

On the pants:

Traditionally, gi pants are made of a sturdy cotton canvas, or denim (with reinforced seams/knees). Tough and light weight materials have started to become more popular in recent years as cooler hot weather gis have become more popular. It is common in tournaments to see competitors wearing ripstop pants with a standard cotton gi top.

Single Weave Cotton: This is lighter and typically less expensive. It is often used for hot weather training. Being lighter weight (typically between 300–550 g/m2), this weave is not as durable as a heavier fabric.

Gold Weave Cotton: This material is in-between the single and double weave with regards to weight and durability. Gold weave is a standard that was originally required for competition by the Brazilian Jiu Jitsu Confederation, although this has now been relaxed to allow different jacket weaves.


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