If you are stumping up the best part of £500 for a fancy new sun hat, you could be forgiven for thinking it should be suitable for use in the height of summer.
Alas, the Highgrove Visor now on sale at the King’s country estate offers no such guarantee.
In fact, those buying one are warned to avoid direct sunlight while wearing it.
The £475 straw hat was launched last week amid claims it was inspired by ‘the timeless silhouette of the bonnet’.
The headwear was created by milliner Emily Hurst and has a base made of t’nalak, a banana fibre textile, combined with intricate wheat straw plaiting.
It features the curve of a Regency bonnet to the front and a large bow in Highgrove Green at the back.
But the hat may not be suitable for what would seem to be its key purpose.
A warning on the Highgrove Shop website reads: ‘Avoid moisture and direct sunlight – prolonged exposure may warp shape or fade colours.’
Similarly boujee sun visors from fashion houses such as Dior and Prada offer no such concerns.
Ms Hurst, 23, from Bristol, last week described how her creation was inspired by an 1820s-style Bridgerton-era bonnet she made on a university placement.
She studied at Highgrove Gardens near Tetbury in Gloucestershire in the first intake of the Chanel and The King’s Foundation Metiers d’Art Millinery Fellowship.
Ms Hurst said: ‘Revisiting my original patterns, I used the curve of the brim and the angle of the crown as an inspiration, which felt right given that the bonnet was once an essential part of everyday dress.
‘This developed into the visor, and so it makes it even more special to have the opportunity to share this design through the Highgrove Shop, as it draws right back to where my love of hats began.’
The Highgrove Shop features bespoke and curated products including jewellery and clothing, with profits going to The King’s Foundation charity.
The King’s Foundation declined to comment.