Meghan Markle [1] and Prince Harry joined Queen Elizabeth for the first day of Royal Ascot. The gorgeous couple rode a carriage onto the course after having lunch with the Queen. For the opening day of the famous horse racing event, Meghan wore a regal white shirt dress by Givenchy. (In case you forgot, she also wore the brand for her fairy tale wedding dress [2].)

While her bridal-inspired look [3] was eye-catching, we were also struck by her gorgeous hat [4]. To finish her look off, Meghan wore a matching white hat by Philip Treacy [5] that featured elegant black detailing. On the other hand, Harry wore a traditional tailcoat and top hat. Read on to see all angles of Meghan's stunning hat ahead.