The Princess Royal, 70, has stepped out a number of times wearing the face covering. The reusable white mask is decorated with her royal monogram.
Royal fans were quick to take to social media to comment on Anne’s stylish face covering.
One Twitter user wrote: “That’s the best looking mask I’ve ever seen!”
Another said: “Princess Anne’s face mask. That is all.”
A third added: “I love her mask!!!!”
She also wore the mask for an engagement to the National Maritime Museum Cornwall.
Anne is not the only member of the Royal Family to have been out in a face covering.
The Duchess of Cambridge has worn a pretty floral mask.
She has been seen in the face covering numerous times.
Prince William kept it simple with a blue mask this week when he and Kate carried out royal engagements in London.
Camilla donned a visor earlier this month when she met medical detection dogs.
The Duchess of Cornwall has also previously worn a face mask.
Members of the Royal Family have recently started completing face-to-face duties after swapping to virtual engagements during the lockdown.