Royal Family members jet off around the world as part of their royal duty. However, when doing so they must follow a number of protocols in order to represent the UK in the best way possible.
Many of these protocols regulate the clothes Royal Family members wear while travelling and at state events.
Though Queen Elizabeth II, 94, traditionally took on these international ventures, in recent years she has retired form global travel.
Instead, younger members of the monarchy now take on international duties, with Prince William and his wife Kate Middleton increasingly carrying the bulk of these jobs.
Although the Duchess of Cambridge is well known for her fashion flair, it seems she must be very careful when deciding which items to clothing to pack when heading abroad.
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Royal women must avoid making one saucy mistake when it comes to style.
According to reports, royal protocol states that female family members must not show cleavage when they travel.
They should opt for more modest items of clothing instead.
This is because they are representing the UK, and are technically doing business when they travel.
“When members of the Royal Family are on an official state trip on behalf of Queen Elizabeth II they are working, just as anyone else on a business trip,” Anne Chertoff, chief operating officer at New York-based Beaumont Etiquette, which currently runs a specialist online royal-themed etiquette course, told Express.co.uk.
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“It’s appropriate for them to dress well to show respect to the people they are meeting with.”
However, it seems there is one tip some members of the Royal Family have figured out in the past to allow for slightly more “revealing” garments.
Diana, Princess of Wales, was famous for wearing stunning, fashionable garments.
In order to avoid the press getting any inappropriate snaps of her as she got into and out of cars, the Princess carried what was dubbed her “cleavage clutch”.
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Fashion designer Anya Hindmarch, who styled Princess Diana, told the Telegraph, “We used to laugh when we designed what she called her ‘cleavage bags,’ little satin clutches which she would cover her cleavage with when she stepped out of cars.”
This is not the only fashion rules Royal Family members are subject to when travelling abroad.
Unlike typical passengers, members of the monarchy are rarely seem existing aircraft in casual clothing.
Male members of the family tend to wear suits, while women often wear dresses and hats.
Much like the modest clothing rule, this is also due to the fact that they are on official business.
“They may wear more relaxed clothing for long flights, but when exiting a plane they’re dressed in a suit or dress,” explained Ms Chertoff.
“When members of the Royal Family disembark on an official trip they are greeted by official representatives from the nation’s government, along with the international press. These are official events.”