Casual is not a word you would use to describe Princess Eugenie and Jack Brooksbank's nuptials [1] — or any other royal wedding for that matter. At the elegant event on Oct. 12 at Windsor Castle, guests were expected to look the part [2] in morning dress [3].
What does that entail exactly? Per the official invitation [4], male attendees were expected to wear their morning coats, and female attendees were asked to wear day dresses with hats. A morning coat is a formal jacket with tails, which is then paired with a waistcoat, trousers, and typically a top hat. The day dress needs to be both formal and daytime-appropriate — and in case you hadn't noticed, the hat is an essential element.
Though the wind proved to be a bit of an issue [5], it didn't stop guests from looking fancy in their formal wear. Ahead, see examples of how guests stuck to the dress code.