In the Japanese Table Tennis Rules, for competition sports wear held by the JTTA (Japan Table Tennis Association), “Competitive shirts, shorts (shorts or half pants) or skirts are not those approved by JTTA (However, for organizations organized by organizations other than the Japan Table Tennis Association, it will be left to the judgment of the host organization).┬áCompetition wear approved by JTTA has a certification mark, and butterfly competition wear (game shirt and game pants) has all official marks.

Examples of JTTA (Japan Table Tennis Association) official mark

Example of Shirt pasting place to butterfly competition wear

Example of Pants pasting place to butterfly competition wear