According to designer Lisa Marie Fernandez, the model copied her Triple Poppy maillot and her off-the-shoulder Leandra bikini top, now rechristened as a “Cardiff” swimsuit “Vulcan” top, respectively. Fernandez sent a cease-and-desist letter to the model, saying that she’s had those styles on offer for the past three years. According to Business of Fashion , in the United States, you can’t copyright protect “physically functional items, including clothing,” but because Ratajkowski’s line ships internationally, Fernandez was able to invoke two European Union Community Design Registration certificates that she registered in May 2015, which grant her a monopoly on the designs in the EU until 2020.