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Kate Middleton casual style: the Duchess' best casual outfits

An ode to the Duchess' off-duty wardrobe

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kate middleton casual style
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'Kate Middleton' and 'casual style' aren't two terms you would normally associate with each other, but when Catherine, Duchess of Cambridge isn't busy donning fancy outfits for public events or the completion her royal duties, you can likely find her wearing pieces from her (equally chic) off-duty wardrobe.

Think preppy sports tees, puffer jackets, country-chic riding boots, and even sporty leggings - yes, seriously. Kate's a champion on laidback-yet-smart looks that are relaxed yet still totally chic.

Keen to see more of the Royal family's looks over the years? Read our guides to the unforgettable Royal fashion moments, all the times Meghan has channelled Princess Diana with her outfits, not forgetting the most controversial royal outfits to date (now these are worth a scroll...). Plus, 13 unexpected fashion rules that the royal family still follow.

Scroll through to see the Duchess in a more relaxed aesthetic than what you're used to. Who knows, you might find some casual outfit ideas to add to your own out-of-work repertoire.

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Kate Middleton Casual Style

kate middleton casual style
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For Kate Middleton's latest public appearance, the Duchess stepped out wearing one of this season's biggest trends: quilted outerwear. Kate arrived at the Alexandra Park Sports Hub in Glasgow yesterday (in line with COP26) sporting a recycled khaki-toned gilet by fashion editor favourite brand Ganni, Vogue reports, layered over a black turtleneck jumper with matching jeans, See By Chloé boots and the traditional Scouts' scarf wrapped around her neck.

The Duke and Duchess of Cambridge took part in a range of activities on the day, learning more about the Scouts' #PromiseToThePlanet campaign and, according to the royals' Instagram, the organisation's role in "helping to equip young people with skills to tackle climate change."

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Kate Middleton Casual Style

kate middleton casual style
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Kate Middleton's recently stepped out at National Tennis Centre in London to welcome home the British US Open champions, including Emma Raducanu, Joe Salisbury, Gordon Reid and Alfie Hewett.

Of course, you can't welcome home tennis champs without a quick hit around, can ya? So, that's exactly what happened (scroll through to see more pics). Kate was match-ready, dressed in a navy two-piece skirt set by French sportswear brand Poivre Blanc, which she then teamed with a pair of matching white trainers and a high ponytail.

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Kate Middleton Casual Style

kate middleton casual style
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Here's Kate and Emma enjoying a good laugh together courtside and aren't they just the cutest? <33

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Kate Middleton Casual Style

kate middleton casual style
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Aaand here's a closer look at the sport 'fit. Scroll through to see the Duchess' other best casual style moments.

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Kate Middleton Casual Style

kate middleton wears a bobble hat and black coat in the park for children's mental health week
@kensingtonroyal//Instagram

Catherine, Duchess of Cambridge (AKA Kate Middleton) films an Instagram selfie video wearing a black bobble hat and quilted jacket for Children's Mental Health Week. Anyone else feeling this look for winter park walks?

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Kate Middleton Casual Style

kate middleton casual style britains prince william, duke of cambridge and britains catherine, duchess of cambridge disembark the royal train as they arrive at manchester victoria station on their final stop of the day for a visit to fareshare in manchester on december 7, 2020   fareshare redistributes surplus food from food businesses to 11,000 charities and community groups including school breakfast clubs, community centres, homeless shelters and food banks
during their trip, their royal highnesses hope to pay tribute to individuals, organisations and initiatives across the country that have gone above and beyond to support their local communities this year photo by phil noble  pool  afp photo by phil noblepoolafp via getty images
PHIL NOBLE//Getty Images

See, the Duchess can even style masks well. Visiting members of Manchester Inspirational Voices at Old Smithfield Market in Manchester last week, Kate wore a Scandi-inspired lambswool knitted jumper from TROY London, designed by British designer Rosie van Cutsem. As per The Independent, Kate's masks are reusable, and from Amaia. You can get your hands on your own for just £15.

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Kate Middleton Casual Style

britains catherine, duchess of cambridge, arrives for a visit to fakenham garden centre in norfolk on june 18, 2020 where she met the owners and staff   the duchess visited the family run independent business, which first opened in 1984, to hear about how the covid 19 pandemic had impacted the company photo by aaron chown  pool  afp photo by aaron chownpoolafp via getty images
AARON CHOWN//Getty Images

Kate Middleton who, until now, has been attending events on Zoom just made her first in-person public appearance since lockdown commenced, stepping out at Fakenham Garden Centre in Norfolk. The Duchess swapped her formal attire for a more casual look, featuring a blue collared shirt, a contrasting gilet, skinny jeans and khaki green trainers. Of course, they're not just any trainers, no sir. These bad bois are Superga - the same off-duty brand worn by Kate's mother in law, Princess Diana. Scroll down to shop the style now.

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Superga, £55 2750 Cotu Classic in Sherwood Gum

2750 Cotu Classic in Sherwood Gum
Credit: Superga

Good news, folks! Superga have a load of sizes in stock - but you might want to be quick, the Duchess has a reputation for making items sell out in record time.

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Kate Middleton Casual Style

Kate Middleton trainers
YUI MOK//Getty Images

Kate stepped out at London Stadium wearing a refreshingly casual outfit consisting of green slouchy coordinates, white trainers with matching emerald contrast panels and a navy blazer shrugged over the top. For those of you looking to nab a pair of the same pumps, they're from Marks & Spencer and cost less than £30 (!).

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Veja Campo metallic-trimmed leather sneakers

Campo metallic-trimmed leather sneakers

Sadly Kate's M&S trainers she's wearing have sold out, but these Veja lookalikes are also a royal favourite, with both Kate and Megan wearing them regularly. They're vegan, and the brand's been hailed for making their production eco-friendly, too.

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Kate Middleton Casual Style

kate middleton red puffer
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For her latest trip to Great Missenden, Kate arrived wearing a fire engine red puffer jacket over a cosy emerald green jumper. This isn't the first time Kate's worn the puffer jacket, famously sporting the piece at the Heads Together London Marathon Training Day in 2017, where she completed a mini race against Prince William and Harry. The Duchess finished her most recent ensemble with a pair of navy jeans, brown leather walking boots and, of course, her signature bouncy blow-out.

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Kate Middleton Casual Style

kate middleton red puffer
Net-A-Porter

While Kate's exact red puffer by brand Perfect Moment is no longer be in stock, here's a super similar style to buy, which will see you through the winter months in style. Alternatively, click here to see our Fashion Team's edit of the best puffer jackets to shop now.

Cropped quilted shell down jacket, £315, Tory Sport

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Kate Middleton Casual Style

kate middleton trainers
Antony Jones//Getty Images

Kate Middleton arrived at The Royal Yacht Squadron during the inaugural King's Cup Regatta looking absolutely phenomenal. Kate wore a striped peplum top by Sandro, wide-leg trousers and a pair of her go-to trainers - the same shoe favoured by Princess Diana: the Superga 2750 style.

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Sandro frill top

kate middleton striped top
Harrods

Frill top, £81, Sandro

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Gerard Darel Naelie Wide Leg Button Trousers, Navy

Naelie Wide Leg Button Trousers, Navy
Now 50% Off
Credit: John Lewis
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Duchess' pick

white 2750 trainers in white

2750 trainers in white
Credit: Superga
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Kate Middleton Casual Style

kate middleton cumbria boots
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For her latest appearance in Cumbria, Kate Middleton stepped out in hiking-attire, wearing a khaki jacket, matching sage jumper and a pair of black skinny jeans, teamed with brown lace-up outdoor walking boots.

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Kate Middleton Casual Style

kate middleton casual style
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Kate arrived at the RHS Chelsea Flower Show press day wearing a white shirt with perforated dot detailing, teamed with a pair of cropped caramel flared trousers. The look was then neatly tied together with fresh white trainers (Supergas, FYI, which also happened to be Princess Diana's go-to shoe).

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Kate Middleton Casual Style

kate middleton casual style
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Contrary to what you might think, the Duchess is also an avid fan of sportswear. During the London Olympic Games, Kate was snapped wearing an adidas zip-up jacket with fitted black trousers and statement red trainers.

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Kate Middleton Casual Style

kate middleton casual style
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For the Duke and Duchess' royal tour of North America, Kate opted for a more casual look, with a khaki-hued button-up shirt, blue jeans, white and khaki boat shoes, and a utilitarian brown leather belt.

Headshot of Natasha Harding

Natasha Harding is the former Fashion Editor (Digital & Print) at Cosmopolitan & Women's Health UK. Working in fashion journalism for just under ten years, she’s covered over 30 international fashion weeks, hundreds of red carpets and religiously scours the runway every season to create the brand’s bi-annual trend report. Joining Cosmopolitan back in Australia, Natasha moved to London a few years ago and is now the resident expert for celebrity style and industry news, fashion features and e-commerce. Follow Natasha on Instagram  

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