A model displays shoes during the Ryan LO Autumn/Winter show at London Fashion Week, Friday, February 19, 2016. (Photo by Kirsty Wigglesworth/AP Photo)
Models smoke during a break at Sevilla de Boda (Seville Wedding) fashion show in the Andalusian capital of Seville November 27, 2015. (Photo by Marcelo del Pozo/Reuters)
Models walk down the runway during the Robb & Lulu swimwear show as part of Funkshion Fashion Week Swim, Friday, July 17, 2015, in Coral Gables, Fla. (Photo by Lynne Sladky/AP Photo)
A model presents a creation at the Central St Martin's catwalk show during London Fashion Week in London, Britain February 17, 2017. (Photo by Neil Hall/Reuters)
Models seen backstage ahead of the Philosphy Di Lorenzo Serafini show during Milan Fashion Week Fall/Winter 2017/18 on February 25, 2017 in Milan, Italy. (Photo by Tristan Fewings/Getty Images)
Models prepare backstage before a fashion show by Israeli designer Yossef during the Tel Aviv Fashion Week on November 21, 2011 in Tel Aviv, Israel. (Photo by Uriel Sinai/Getty Images)
Model Bianca Balti prepares backstage at the Iceberg Autumn/Winter 2012/2013 fashion show as part of Milan Womenswear Fashion Week on February 24, 2012 in Milan, Italy. (Photo by Tullio M. Puglia/Getty Images)
A model presents a creation at the Moschino fashion show during Milan Fashion Week Spring/Summer 2017 in Milan, Italy, September 22, 2016. (Photo by Alessandro Garofalo/Reuters)