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Kate has worn the same coat dress in 2016, left, 2017 and now at the royal wedding in 2018.

If you're going to do a wardrobe repeat, at least do it like the Duchess of Cambridge.

Kate donned a cream Alexander McQueen coat to the nuptials of Prince Harry and Meghan on Saturday, but it wasn't the first time she stepped out in the ensemble.

She has worn the designer get-up at least three times previously, including to daughter Charlotte's 2015's christening.

The only change-up? Her accessories.

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Kate paired the Alexander McQueen coat dress with nude pumps for the wedding.

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For Harry and Meghan's wedding, Kate accessorised with a pale-yellow, floral fascinator and nude pumps.

When she wore the coat in Belgium last July, she opted for a white fascinator. To Charlotte's christening, she wore another white fascinator with floral details and white pumps.

And in June 2016, she paired a pale-pink, floral fascinator with the coat.

What we want to know? How it's stayed so clean despite looking after two (and now three!) little kids.

- USA Today