UNIFORM RULES
Skin suits may be used in middle and long distance competitions where the athlete removes the skin suit before the bike segment. The suit must follow the ITU Uniform Rules (including Name, Country etc.).
At the Multisport World Championships, an athlete can wear a uniform that does not comply with the approved National Federation uniform colour and design unless the athlete’s National Federation, for sponsorship or other reasons, requires differently. The uniform must still follow the ITU uniform Rules.
Hats and race belts with logos are allowed.
For more information please see the ITU Rulebook.