glamorous in form-fitting dresses and eye-catching in supersized hats as excited racegoers pulled out all the stops as they arrived for sunny Ladies' Day on the third day at Royal Ascot.

David Davies/PA Images/Getty; David Hartley/Shutterstock Princess Eugenie, Sophie, the Duchess of Edinburgh and more are making the Royal Ascot a fashion ... and matching hat with oversized ...

Meghan Markle made her debut at Royal Ascot in her most British (and dramatic!) hat to date Erin Hill is the Senior Editor, Royals at PEOPLE. She has reported on Royals for the brand since 2015.