Riders at the Tour de France Femmes Avec Zwift have had their clothing checked to prevent attempts to make "aerodynamic gains". Issues have reportedly been raised about padding in bras that could result in riders gaining one second per kilometre. Race organiser ASO issued a statement following Dutch media reports of concerns some riders had used bra padding as aerodynamic fairings to improve efficiency. Dutch outlet Wielerflits, external said the practice had been seen previously in women's cycling, including at the Paris 2024 Olympics. Riders could face disqualification from a race and a fine of nearly £200.