Since then, every move Meghan Markle’s sister-in-law makes is watched as she carries out royal duties.
From small details like tights and footwear, to dress length and colours, here’s the hacks Kate can’t live without:
One of Kate’s greatest fashion hacks are her special tights with adhesive grip on the bottom.
The Duchess wears tights with sticky pads along the sole of the foot, which stops the royal’s heels from slipping off, or her tights from spinning round during an occasion.
What’s even better is the tights the Duchess wears will only set you back £5, from John Lewis.
The must-have product, called the Barely There Non-Slip Tights, is available online.
Kate has worn nude heels since she became a Duchess, and they have become a staple item in her fabulous wardrobe.
When it comes to royal engagements, Kate will turn to her favourite nude heels for most events – and there’s a very smart reason for it.
While the nude heels go with everything, they’re also a very clever way to help your legs look longer.
Celebrity stylist Donny Galella told Femail: “Every woman needs a pair of nude pumps in her life.
“They always elongate your legs and make you look taller and thinner.”
Not only this, but Donny added: “Classic and timeless that pretty much go with everything in your wardrobe.
“That’s the reason why so many celebrities and royal women repeat them in their wardrobes.”
Go shorter during pregnancy
Throughout her three pregnancies, Kate has delivered stunning maternity styles year after year.
One of Kate’s go-to maternity fashion hacks is all about opting for shorter hemlines.
Speaking to Instyle, founder of maternity brand Seraphine Cecile Reinaud explained that while pregnant you can create a nice silhouette by “highlighting legs and arms”.
She said: “Kate did go shorter for sure. She went shorter, on a couple of occasions well above her knee, which she never does normally.
“And especially in winter, because when she wore opaque black tights, it looks okay. It doesn’t look too much because it’s not bare legs.”
Avoid a fall
Royal engagements continue through every season, but Kate has a handy shoe hack to ensure she doesn’t slip while in front of hundreds of cameras.
Kate occasionally wears heels with a thick grip on the sole while attending royal duties.
Kate favours the Tod’s Black Suede Block Heel Pumps.
Stay colour coordinated
Kate is all about matching colours with her children and husband.
When the entire Cambridge family are out together, they usually match in some way through colour or pattern with the ensembles.
This makes pictures of the family more photogenic.