Kate Middleton Just Wore the Smart Trouser Trend European Women Know Will Be Huge This Spring

If the spring/summer 2025 collections taught us anything at all, it's that suiting is going to be key next season. Smart, neatly tailored silhouettes were a resounding runway success, heralding the return of one of fashion's most timeless trends.

Clearly, in tune with the move towards suiting, Kate Middleton stepped out this week wearing the specific trouser style that's set to take off soon. Styling a chic take on suiting for an engagement at The National Portrait Gallery, Catherine, Princess of Wales, picked up a deep chocolate brown blazer, but instead of selecting an equally earthy shade of trousers, Middleton reached for the classic pinstripe trouser trend to complete her look.

Kate Middleton wears pinstripe trousers.

(Image credit: Getty Images)

Keeping her styling clean and polished, Middleton paired her trousers with a slim-fitting turtleneck and pointed-toe heels. Adding dimension to her transeasonal look, without incorporating excess colour or texture, her chocolate brown blazer and charcoal pinstripe trousers instilled an easy elegance and subtle wash of colour.

Influencer wears pinstripe trousers.

(Image credit: @nnennaechem)

While pinstripe trousers are set to be a core trend for spring, they have an enduring appeal that sees them style well throughout the year, meaning they're already cropping up in chic outfits now. Pairing chicly with a neat button down for an office-ready look, this trouser also works well with slouchy knits for a more low-key take.

Influencer wears pinstripe trousers.

(Image credit: @ingridedvinsen)

Elongating the legs by means of the subtle vertical stripes that trace from the hips to the ankles, pinstripe trousers are a wearable investment you'll find you keep coming back to.

By no means a new trend, fashion people throughout Europe have been weaving these trousers into their wardrobe rotations for seasons. Translating the easy elegance that the European style set is known for, these trousers feel fuss-free and polished and can easily stand in for jeans if you want to elevate your style in an instant. And right now, I'm seeing them crop up more than ever.

Influencer wears pinstripe trousers.

(Image credit: @fakerstrom)

The Princess of Wales's endorsement is a clear tell that a trend is set to take off, and I'm getting ahead of the curve and shopping it now. If you are, too, then read on to discover our edit of the best pinstripe trousers below.

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Natalie Munro
News Writer

Natalie Munro is Who What Wear UK’s news writer. Having worked in the fashion industry since her time at university—where she obtained a BA in Journalism from University of the Arts London, Natalie's experience spans journalistic and styling roles. In the early stages of her career Natalie predominately worked on editorial shoots for fashion publications such as British Vogue, Vogue Ukraine, AnOther Magazine and Elle UK, before moving into journalism roles.

On completion of her degree she interned in the editorial team at British Vogue and later went on to freelance for the publication. Here, she developed her interest in reporting on the latest fashion news and trends. Inspired by the dynamic nature of the industry, Natalie went on to write for other lifestyle and fashion brands and publications before taking on the role as News Writer for Who What Wear.

With an interest in uncovering the latest fashion trends, Natalie takes a leading role in identifying news for Who What Wear UK. Focusing on trends on and off the runway, as well as street style and celebrity fashion, Natalie reports on a daily basis, ensuring that she remains ahead of the trends. Natalie also creates content for Who What Wear’s social channels including TikTok and Instagram on a weekly basis.