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Ladies' Day, on the third day of Royal Ascot, is one of the biggest events in the British fashion calendar with many women braving daring millinery and flamboyant dresses.
The event is a major fixture of the social season and is traditionally the busiest day of the five-day meet.
Despite a strict dress code - with the Royal enclosure banning strapless dresses and enforcing the wearing of hats - bold prints, candy floss colours and classic dresses are the order of the day for ladies in attendance.
Here is a collection of the memorable, and some of the more questionable, headwear choices.
Image copyrightDavid Davies/PAImage caption
In the Royal enclosure, headpieces with a base of less than 4in (10cm) in diameter are deemed "unacceptable" - but there is no upper size limit
Image copyrightAdam Davy/PA WireImage caption
This racegoer topped her striking outfit off with one of the larger headpieces of the day
Image copyrightAdam Davy/PA WireImage caption
Flowers and feathers were a common theme amongst many
Image copyrightReuters / Toby MelvilleImage caption
Others opted for more futuristic elegance
Image copyrightReuters / Toby MelvilleImage caption
Animal-themed millinery was a surprising trend
Image copyrightJUSTIN TALLISImage caption
Giant ram horns made out of sweet wrappers anybody?
Image copyrightReuters / Toby MelvilleImage caption
This racegoer opted for equine decoration of her headpiece
Image copyrightAdam Davy/ PA WireImage caption
As did these two but with slightly bigger horses, however...
Image copyrightAdam DavyImage caption
...Bigger is not necessarily better
Image copyrightReuters / Andrew BoyersImage caption
Sometimes all you need to get noticed is a massive flower on your head
Image copyrightJUSTIN TALLISImage caption
These two got behind the Euro 2016 opponents, England and Wales, who played each other in the afternoon. The hats were being launched by national Charity, British Polio, as part of a campaign to raise awareness of Post Polio Syndrome (PPS).
