BothPrincess AnneandPrincess Eugenieopted for a fedora for the occasion.

Annes was an asymmetrical, layered hat with a 3D applique on the side.

Eugenie, on the other hand, opted for a more classic silhouette that matched her white coat.

Queen Camilla arrives on day two of the 2024 Cheltenham Festival at Cheltenham Racecourse. Picture date Wednesday March…

Andrew Matthews - PA Images/Getty Images

She accessorized her fedora with a silver hatpin.

Zara Tindall, Princess Annes daughter, donned a more traditional British fascinator.

The cranberry hued base sat atop her head, affixed with a very large burgundy bow.

CHELTENHAM ENGLAND  MARCH 13 Princess Anne attends Style Wednesday day two of the Cheltenham Festival at Cheltenham…

Leon Neal/Getty Images

One can only imagine the mechanics that kept it in place.

The day prior also proved a hat-worthy occasion, and the Royals opted for more avant-garde choices.

Anne also chose a blue hue, although more muted than her sister-in-laws.

Cheltenham UNITED KINGDOM  Princess Eugenie and husband Jack Brooksbank arrive at the 2024 Cheltenham Festival  Day 2 at…

XPOS

Her wide brimmed hat featured turquoise details, as well as red feathers that matched her coat.

Zara Tindall on day two of the 2024 Cheltenham Festival at Cheltenham Racecourse. Picture date Wednesday March 13 2024.

Mike Egerton - PA Images/Getty Images

LONDON ENGLAND  MARCH 11 Queen Camilla attends the 2024 Commonwealth Day Service at Westminster Abbey on March 11 2024…

Samir Hussein

Image may contain Anne Princess Royal Person Adult Clothing Glove Hat Accessories Bag and Handbag

Max Mumby/Indigo/Getty Images