Want a fool-proof summer outfit? Harriet Phillips has inspired us to go back to basics with her white midi and practical crossbody bag

This 2025 polo look wasn't overcomplicated and the simplicity is what makes it so chic and versatile

Peter Phillips and Harriet Sperling attend The Royal Charity Polo Cup 2025 at Guards Polo Club on July 11, 2025
(Image credit: Photo by Mark Cuthbert/UK Press via Getty Images)

There are times for leisurely getting ready and others that call for a throw-on outfit that delivers instant elegance. The easiest summer uniform is a dress and comfortable sandals but after weeks of heatwaves, I feel like I need some inspiration.

Sometimes taking things back to basics is more striking than going bold and Princess Anne's daughter-in-law Harriet is great at this. Her signature style is unfussy and for last year's Royal Charity Polo Cup she wore a plain shirt dress with wedges and a crossbody bag.

A white or off-white dress isn't the most exciting piece you can have in a summer capsule wardrobe but it's one of the most versatile. Harriet's one was by St Clair and it had a frilled neckline, a tie belt to accentuate the waist and a midi-length skirt.

Peter Phillips and Harriet Sperling attend the Royal charity polo cup at Flemish Farm on July 11, 2025

(Image credit: Photo by Chris Jackson/Getty Images for Outsourcing Inc Royal Charity Polo Cup Cup)

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Delicate floral embroidery on the yoke was a feminine flourish and there's also scalloping on the neckline and hem. She undid a couple of buttons and shirt dresses can be made smarter or relaxed depending on how open or structured they're worn.

This is why they're a good option if you're in the market for a white dress for the end of summer, as not every design will be as easy to switch up. Harriet Phillips' frock was collarless, sleeveless and crafted from cotton.

Cotton and linen are breathable and look more low-key when you've got a pure white design. The tiered skirt and belt added some definition and although you could be tempted to go for vibrant accessories with something as classic as this, Harriet didn't go too "out there".

Harriet Phillips attends the Out-Sourcing Inc. Royal Charity Polo Cup 2025 at The Castle Ground, Guards Polo Club, Flemish Farm on July 11, 2025

(Image credit: Photo by Max Mumby/Indigo/Getty Images)

The NHS nurse stuck to the keep-it-simple theme and wore tan espadrilles and a woven burgundy bag by Anya Hindmarch. It was technically a wallet but it came with a long leather strap and she wore it crossbody.

I personally almost always wear crossbody handbags and I think that the royals are missing a trick by not reaching for them that often. The Princess of Wales, Duchess of Edinburgh and Queen Camilla generally carry either clutches or top handle styles.

These are more formal so I can see why they wear them, though crossbodies are just so practical. Harriet could enjoy her day at the polo completely hands-free and the woven bag was big enough to fit her essentials.

Peter Phillips and Harriet Phillips attend the Royal charity polo cup at Flemish Farm on July 11, 2025

(Image credit: Photo by Chris Jackson/Getty Images for Outsourcing Inc Royal Charity Polo Cup Cup)

The dark red shade was a contrast against her pale dress and because it was quite muted, it still kept everything feeling minimal. As fashion formulas go, a white dress and crossbody bag is one of the most wearable and quick to put together. If you're not a fan of burgundy for the season, then go for a neutral accessory instead.

The beauty lies in the simplicity so you could even pick a matching white bag to emphasise this even more. Footwear can also be mixed and matched and espadrille wedges like Harriet's are lovely for special occasions. Espadrille flats, ballet pumps and sandals would work as alternatives and timeless designs will echo the elegance of your dress and bag.

Emma is a Royal Editor with nine years of experience in publishing. She specialises in writing about the British Royal Family, covering everything from protocol to outfits. Alongside putting her extensive royal knowledge to good use, Emma knows all there is to know about the latest TV shows on the BBC, ITV and more. When she’s not writing about the latest royal outing or unmissable show to add to your to-watch list, Emma enjoys cooking, long walks and watching yet more crime dramas!

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