Princess Anne sparked a fan frenzy as she joined King Charles and Queen Camilla for a poignant reception at Buckingham Palace on Thursday.
The royals hosted a reception to celebrate exceptional individuals and organisations contributing towards humanitarian efforts around the world.
The Princess Royal looked regal in a cream skirt suit which she paired with a silk scarf, black heels and a pair of black shoes.
But royal fans were impressed as the royal appeared to wear an outfit she had first worn in 1997.
Many took to social media to praise her for looking incredible in the same outfit 28 years later and gave her a three-word nickname: "Queen of recycling".
READ MORE: Princess Anne handed another role as 'hardest-working royal' carries on duties
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One user asked on X: "How does she still fit in her clothes from way back then??"
Another one said: "The big takeaway is, she has maintained her weight. Hard to do as you get older."
A third one wrote: "I wanna know how she defied gaining weight as she aged and kept her figure!"
A fourth one commented: "She’s brilliant at recycling her clothes decades later, and all still in fashion too. Such a classic look."
A fifth one chimed: "The Princess Royal, takes fabulous care of her clothes and herself."
Earlier in the day, the Princess Royal visited the UCL East campus in London.
Anne viewed the teaching areas and met academics and students committed to finding solutions to key challenges facing the planet.
She also unveiled a commemorative plaque in honour of the occasion and received a bat sensor as a gift from a student.
