Women's WorldTeams have complained about cyclists using padded bras as chest fairings to reduce air resistance by up to 3.6% during time trials.
https://www.foxnews.com/outkick-sports/womens-tour-de-france-hit-scandal-teams-accuse-riders-wearing-padded-bras-gain-advantage
https://www.foxnews.com/outkick-sports/womens-tour-de-france-hit-scandal-teams-accuse-riders-wearing-padded-bras-gain-advantage