This weekend, actress Emma Watson embarked on a press tour in Madrid promoting her new film, “Regression.” But the mega-star of “Harry Potter” fame used the platform for more than just endorsing her movie. From wearing clothes by designers that don’t use fur to those who refuse to use environmentally harmful chemicals, she used her wardrobe to stand up for a fashion-related cause: advocating against unethical fashion.

“First day of Regression press off to an incredible start. Obsessed with this Ralph Lauren look made only better by the company’s long standing commitment to not use fur products,” Watson mused in an Instagram caption.

So who are a few of the brands that made the “Regression” press tour? London-based womenswear designers Isa Arfen and Erdem, who produce their garments through vetted suppliers and manufacturers; NYC-based jeweler WWAKE, who uses destruction-free antiques, conflict-free stones and recycled gold whenever it’s possible; and shoe designer Paul Andrew, whose handmade shoes are crafted by artisans in Italy.