A model checks her mobile phone backstage during Kazakhstan Fashion Week in Almaty, Kazakhstan, October 14, 2015. (Photo by Shamil Zhumatov/Reuters)

A model waits to present a creation by Chinese designer Hu Sheguang for his collection show during China Fashion Week S/S 2016 in Beijing October 26, 2015. (Photo by Jason Lee/Reuters)

A model presents a creation by DB Berdan during the Mercedes-Benz Fashion Week in Istanbul, Turkey March 28, 2018. (Photo by Osman Orsal/Reuters)

A model presents a creation by designer David Ferreira, as part of his Fall/Winter 2016/17 collection, during Lisbon Fashion Week, Portugal, March 11, 2016. (Photo by Rafael Marchante/Reuters)

A model presents a creation by designer Nadir Tati, as part of her Summer 2016 collection, during Lisbon Fashion Week, Portugal, October 11, 2015. (Photo by Rafael Marchante/Reuters)

A model wears a creation for the Andreas Kronthaler for Vivienne Westwood ready-to-wear fall/winter 2018/2019 fashion week runway show in Paris, Saturday, March 3, 2018. (Photo by Vianney Le Caer/Invision/AP Photo)

A model walks the runway during the Vivienne Westwood show as part of the Paris Fashion Week Womenswear Fall/Winter 2018/2019 on March 3, 2018 in Paris, France. (Photo by Patrick Kovarik/WireImage)

Models sit backstage during Dakar Fashion Week in the Senegalese capital, Friday June 30, 2017. The continent's fashion scene has grown steadily over the past two decades with Sub-Saharan Africa's apparel and footwear market now worth $31 billion, according to data by Euromonitor. (Photo by Finbarr O'Reilly/AP Photo)