carolina herrera one shoulder dress Carolina Herrera Ruched Zipper One-Shoulder Midi Dress

The sheer power mesh fabric layers effortlessly over swimwear, making it an ideal swim coverup

Longer dresses are also an option but should feature relaxed silhouettes like sheath or A-line cuts in lightweight materials such as chiffon, tulle, or meshensuring movement and ease throughout the celebration

A contrast satin sweetheart neckline frames the collarbone in the most flattering way possible, while the off the shoulder construction adds that soft, shoulder-baring quality that somehow manages to look both effortless and dressed up at once

The Duchess was wearing a hat by Philip Treacy, with thanks to Gabi for the speedy ID. The chapeau is similar to the Philip Treacy design first seen at the May 2018 wedding of the Duke and Duchess of Sussex (seen below right), worn again at Trooping the Colour in June 2019 (below left)