A model wears a creation as part of the Valli Ready To Wear Spring-Summer 2020 collection, unveiled during the fashion week, in Paris. (Photo by Vianney Le Caer/Invision/AP)A model wears a creation as part of the Valli Ready To Wear Spring-Summer 2020 collection, unveiled during the fashion week, in Paris. (Photo by Vianney Le Caer/Invision/AP)A model wears a creation as part of the Valli Ready To Wear Spring-Summer 2020 collection, unveiled during the fashion week, in Paris. (Photo by Vianney Le Caer/Invision/AP)Models at the Stella McCartney Ready To Wear Spring-Summer 2020 collection, unveiled during the fashion week, in Paris. (Photo by Vianney Le Caer/Invision/AP)A model wears a creation as part of the Valli Ready To Wear Spring-Summer 2020 collection, unveiled during the fashion week, in Paris. (Photo by Vianney Le Caer/Invision/AP)Model Kaia Gerber wears a creation as part of the Stella McCartney Ready To Wear Spring-Summer 2020 collection, unveiled during the fashion week, in Paris. (Photo by Vianney Le Caer/Invision/AP)Model Amber Valletta wears a creation as part of the Stella McCartney Ready To Wear Spring-Summer 2020 collection, unveiled during the fashion week, in Paris. (Photo by Vianney Le Caer/Invision/AP)A model wears a creation as part of the Stella McCartney Ready To Wear Spring-Summer 2020 collection, unveiled during the fashion week, in Paris. (Photo by Vianney Le Caer/Invision/AP)A model wears a creation as part of the Stella McCartney Ready To Wear Spring-Summer 2020 collection, unveiled during the fashion week, in Paris. (Photo by Vianney Le Caer/Invision/AP)A model wears a creation as part of the Stella McCartney Ready To Wear Spring-Summer 2020 collection, unveiled during the fashion week, in Paris. (Photo by Vianney Le Caer/Invision/AP)A model wears a creation as part of the Stella McCartney Ready To Wear Spring-Summer 2020 collection, unveiled during the fashion week, in Paris. (Photo by Vianney Le Caer/Invision/AP)A model wears a creation as part of the Stella McCartney Ready To Wear Spring-Summer 2020 collection, unveiled during the fashion week, in Paris. (Photo by Vianney Le Caer/Invision/AP)A model wears a creation as part of the Stella McCartney Ready To Wear Spring-Summer 2020 collection, unveiled during the fashion week, in Paris. (Photo by Vianney Le Caer/Invision/AP)A model wears a creation as part of the Stella McCartney Ready To Wear Spring-Summer 2020 collection, unveiled during the fashion week, in Paris. (Photo by Vianney Le Caer/Invision/AP)Model Kaia Gerber for the Stella McCartney Ready To Wear Spring-Summer 2020 collection, unveiled during the fashion week, in Paris. (Photo by Vianney Le Caer/Invision/AP)A model wears a creation as part of the Valli Ready To Wear Spring-Summer 2020 collection, unveiled during the fashion week, in Paris. (Photo by Vianney Le Caer/Invision/AP)A model wears a creation as part of the Valli Ready To Wear Spring-Summer 2020 collection, unveiled during the fashion week, in Paris, Monday, Sept. 30, 2019. (Photo by Vianney Le Caer/Invision/AP)A model wears a creation as part of the Valli Ready To Wear Spring-Summer 2020 collection, unveiled during the fashion week, in Paris, Monday, Sept. 30, 2019. (Photo by Vianney Le Caer/Invision/AP)Actress Maisie Williams attends the Stella McCartney Ready To Wear Spring-Summer 2020 collection, unveiled during the fashion week, in Paris. (Photo by Vianney Le Caer/Invision/AP)