A model slips on the runway while parading an outfit by Australian designer Toni Maticevski at Fashion Week Australia in Sydney on May 15, 2016. (Photo by William West/AFP Photo)

A model wears a creation by Taiwanese fashion house Shiatzy Chen as part of its Spring-Summer 2016 ready-to-wear fashion collection, presented during the Paris Fashion Week in Paris, France, Tuesday, October 6, 2015. (Photo by Jerome Delay/AP Photo)

A model shows creations of ACUOD by CHANU during Amazon Fashion Week TOKYO in Tokyo, Japan, March 21, 2019. (Photo by Kim Kyung-hoon/Reuters)

A model presents a creation for the Amir Slama collection during Sao Paulo Fashion Week in Sao Paulo, Brazil, October 26, 2016. (Photo by Nacho Doce/Reuters)

Model Daisy Lowe presents a creation at the Katie Eary catwalk show during London Fashion Week Men's 2017 in London, Britain January 7, 2017. (Photo by Neil Hall/Reuters)

A model has a wig prepared backstage before The Blonds Spring/Summer 2017 collection during New York Fashion Week in the Manhattan borough of New York, U.S., September 11, 2016. (Photo by Lucas Jackson/Reuters)

A model poses at the Hashe presentation during Fashion Forward Spring/Summer 2017 at the Dubai Design District on October 21, 2016 in Dubai, United Arab Emirates. (Photo by Cedric Ribeiro/Getty Images)

A model presents a creation by Japanese lingerie brand Peach John from its Autumn/Winter 2016 collection during Tokyo Fashion Week in Tokyo, Japan, March 15, 2016. (Photo by Toru Hanai/Reuters)