Kate Middleton Wears Custom Alexander McQueen for St. Patrick's Day

Kate Middleton wore a custom Alexander McQueen coat for St. Patrick's Day. Along with her husband, Prince William, Kate visited the 1st Battalion Irish Guards at Cavalry Barracks in Hounslow, England.

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(Image credit: Getty Images)

Today is St. Patrick's Day and the royals are celebrating. While American commoners might celebrate the holiday with some day drinking or by childishly pinching anyone not wearing green, Prince William and Kate Middleton, are ringing in the day with an important royal engagement.

The Duke and Duchess of Cambridge kicked off Sunday with a visit to the 1st Battalion Irish Guards at Cavalry Barracks in Hounslow, England. Visiting the barracks is a tradition for the royal couple, so the engagement doesn't come as a shock.

Also firmly in the "not a shock" category: Kate's amazing, head-to-toe green look. This year, the duchess opted for a bespoke, emerald green coat from Alexander McQueen, according to Kate fashion-focused Twitter account @KateMCambridge. Here's a look at full outfit:

Clothing, Fashion, Street fashion, Coat, Overcoat, Trench coat, Standing, Outerwear, Dress, Footwear,

(Image credit: Getty Images)

Kate accessorized her Emerald City-worthy look with a matching hat, Gianvito Rossi black Piper suede pumps, and a chic pair of black gloves.

Here's a look at the back of the coat:

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(Image credit: Getty Images)

And, just because, here's one of Will admiring the back of, um, the coat:

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(Image credit: Getty Images)

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Kayleigh Roberts
Kayleigh Roberts

Kayleigh Roberts is the weekend editor at Marie Claire, covering celebrity and entertainment news, from actual royals like Kate Middleton and Meghan Markle to Hollywood royalty, like Katie Holmes and Chrissy Teigen. She’s a Ravenclaw who would do great things in Slytherin. To learn more about her, google “Leslie Knope eating salad GIF.