Kate Middleton looked radiant and glowing while attending Garter Day at Windsor Castle on Monday, and we must acknowledge her stunning hair.

Just days after turning heads at Trooping the Colour, the Princess of Wales stepped out with some extended members of the British Royal Family, outfit-repeating in a stunning all-white ensemble with her brunette hair looking longer than ever.

Middleton’s Self-Portrait look consisted of a belted white boucle blazer and a matching white skirt with a lace trim. She paired the look with nude, closed-toe heels and a Sean Barrett hat that sat at an angle on her head. The future queen is never shy about rewearing her outfits and previously stepped out in this particular look back in May at the VE Day concert at Horse Guards Parade.

But it’s about time we get to the Duchess of Cambridge’s hair!

Middleton’s signature long hair was styled in loose mermaid waves that fell gracefully down her back. Her front sections were pulled back from her face and pinned up under her hair to let her statement pearl earrings have their moment.

Since the moment Middleton and Prince William debuted their relationship, the Princess has played it safe and kept her hair the same, but she did debut lighter brown locks earlier this year, introducing some warm honey highlights into her otherwise dark hair.

At the June 16 event, Middleton joined Prince William, King Charles, and Queen Camilla to celebrate the Order of the Garter, the oldest and most senior Order of Chivalry in Britain. This is the first time she has attended the event since 2023 after undergoing cancer treatment last year.

The event holds particular significance for Middleton and her husband as it was there, in 2008, that Middleton made her public debut alongside the future king, three years before they got married.

Before you go, click here to see more photos of Prince William & Kate Middleton through the years.