On Saturday, vegan actress Rooney Mara wore a trendsetting vegan leather harness—made by her own fashion label Hiraeth—over a simple white dress at the Animal Equality Inspiring Global Action Gala in Beverly Hills. “While we’ve seen the harness begin to trend in a more casual context, where ‘It’ girls have layered them up with T-shirts and jeans,” Vogue writer Christian Allaire wrote, “this provocative foray into the red carpet world à la Mara is a first—and it works.” Mara and her friend Sara Schloat launched the luxury fashion line in February, pieces from which have since become a red-carpet go-to for Stranger Things’ vegan starlet Sadie Sink. In addition to Mara, a number of celebrities attended the gala to support Animal Equality’s efforts to end animal exploitation, including Moby, Kat Von D, Daisy Fuentes, Rooney’s sister Kate Mara, and Evanna Lynch.

Photo courtesy of Animal Equality/Instagram