On March 10, the actor and fashion icon attended Zimmermann’s fashion show in Paris and showed up in a look by the brand featuring a subtly cropped trench coat and matching butter yellow trousers. Although there was plenty to covet about the look—the messy French-girl hair, the slouchy bag, those wide-leg cargo pants—I still can’t get over the lightweight jacket that takes on one of the season’s best trends with Holmes’s signature je ne sais quoi.