Casting director Ashley Brokaw has refuted the claims that Ulrikke Høyer was dropped because of her size and was told not to eat before the show.
The four labels will vie for a cash award of 250,000 euros and mentoring from Yves Saint Laurent chief executive officer Francesca Bellettini.
The luxury titan published a think piece in Les Echos newspaper on Friday.
Students at the fourth edition of the Youth Fashion Summit in Copenhagen next week will work on a draft resolution to be presented to the U.N. later this year.
Pedro Almodóvar, Isabelle Huppert, Ellie Bamber and Charlotte Casiraghi also attended the Greece-themed display in Paris.