The Duchess of Cambridge has a very close relationship with sister Pippa Middleton. Though the two aren’t photographed together regularly in public, the lookalike siblings once lived together and are thought to have a very close friendship. In fact, the pair are so close that Pippa named her firstborn son Arthur Michael William Matthews. Many people believe that James Matthews and Pippa’s son is named after her brother-in-law and Kate’s husband, Prince William. This year, the sisters were seen chatting at Wimbledon along with Kate’s sister-in-law Meghan Markle and are thought to have regular playdates with their children. And if there was any doubt as to the closeness of the Middleton sisters, look no further than their wardrobe. The brunette beauties have been twinning for a number of years and have even swapped wardrobe pieces like leather jackets, heels and dresses.

Here are 22 Times Kate Middleton and Pippa (Middleton) Matthews Dressed Alike:

  1. Seeing Stripes

Both ladies love the casual look of a striped sweater. While Kate chose a more nautical horizontal print, Pippa stuck with black and white to match her skinny jeans and flats.

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2. Urban Outfitters

Can you tell the sisters apart? Pre-royal life, the Duchess of Cambridge was fond of a uniform of blazers and suede boots while Pippa was often spotted in the city in a similar style.

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3. Shirtdress Sisters

Both Pippa and Kate love a breezy linen dress for summertime fun but while the Duchess of Cambridge is partial to Zara, Pippa prefers Ralph Lauren.

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4. It’s a Wrap

These British beauties look smashing in their printed wrap dresses with v-necklines. Pre-duchess life, Kate often was spotted in the comfortable and flattering style.


 

5. Polka Dot Princess

For a school visit while pregnant with Arthur, Pippa was photographed in a J.crew polka dot jumpsuit that was not unlike Kate’s dotty blue and white Alessandra Rich dress.

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6. In the Trenches

The Duchess of Cambridge looked chic in a belted trench for a royal engagement while Pippa wore a similar style for an evening out.

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7. Mad for Plaid

Kate and Pippa both look incredibly chic in their plaid skirts, blazers and black suede slouchy boots.

 

8. Colorblock Rock

Always one to dress to impress, the Duchess of Cambridge looks stylish in a black and white sheath while sister Pippa opted for similar sartorial statement at a British Heart Foundation event.


 

9. Party People

Before she was a proud mom and wife, Kate hit the town in a black and white print dress with pretty peep toe heels. Not to be outdone, Pippa chose a similar printed mini dress for a fancy evening soiree.

 

10. Barely Blue

In one of Duchess Kate’s most glamorous dress moments, the royal looked ready for a night of socializing and dancing in this high low pale jade gown. Similarly, Pippa opted for a baby blue gown for a fancy fête.


 

11. Baby on Board

Kate and Pippa showed off their burgeoning baby bumps for some daytime errands and shopping. Kate was looking for antiques in a trench and leggings while Pippa sported a similar casual style for a daytime outing.

 

12. Trendy Twosome

The duchess wore a contrast collar shift dress from Topshop in March 2013. Meanwhile, Pippa sported a similar shift style on the streets of London.


 

13. Otherwise Engaged

For her engagement announcement in November 2010, the duchess wore a blue Issa wrap dress that coordinated perfectly with her sapphire engagement ring. Pippa was a fan of the look and wore the same dress in pink for a wedding.

 

14. A Case of the Blues

Kate looked elegant in a pleated blue dress by Emilia Wickstead in New Zealand, while Pippa rocked a similarly charming style for a daytime function.


 

15. Mad for Plaid

Both Kate and Pippa looked like bona fide fashionistas in their plaid dress coats, tights and suede heeled tall boots.

 

16. In the Navy

Kate looked ready for reporting for official royal duty in a navy jacket and black scarf, while Pippa wore a button front dress in a similar shade for a dressy affair.


 

17. Headband Squad

The Duchess of Cambridge has revived the headband as a must-have wardrobe accessory but Pippa should be given a bit of credit too as she’s worn thick padded velvet numbers like her sister for weddings and social functions.

 

18. Whistle While You Work

Kate looked lovely in a Whistles dress for a Teen Hero Reception and Pippa looked equally ravishing in the style for a walk with baby Arthur.


 

19. Dynamic Duo

Kate and Pippa had a number of Issa dresses in their closet. In fact, Pippa was spotted not only in the white ‘Lucky’ dress but in the style in red and navy as well. Kate opted for the pink and black version of the dress.

 

20. Maxi Moment

In pretty floral maxi dresses, Kate and Pippa looked like they could be twins as their equally stunning dresses were both girly and glam.


 

21. Sweater Sisterhood

Both brunettes look equally enchanting in casual belted sweater dresses with suede boots. Kate wore her turtleneck style for an evening out with Prince William while Pippa wore her fitted tan dress for a city excursion.

 

22. Lovely in Lace

The Duchess of Cambridge stunned this winter in her Alexander McQueen dress featuring a sweetheart neckline, sheer sleeves and velvet trim. The look was quite similar to a dress donned by sister and cookbook author Philippa who wore a similar art deco black evening gown featuring a sheer bodice and rounded neckline for a glamorous evening event.