To be a royal family member means attending hundreds—yes, hundreds—of events each year. Each event requires an appropriate outfit, and with both sustainability and favored outfits in mind, the same piece is often worn and then reworn at least once. Kate Middleton and Princess Diana are most often referenced when it comes to the "royal rewear," but many others—including the late Queen Elizabeth—swear by the practice. Ahead, some of our favorites.
