Daily Mail journalists select and curate the products that feature on our site. If you make a purchase via links on this page we will earn commission - learn moreThis summer, we've been treated to a host of flawless royal ensembles at formal occasions around the world.However, I particularly love seeing royal women embrace a more relaxed style, showcasing wearable, off-duty looks that the average person can easily incorporate into their own wardrobe.Below, I highlight my three favourite summer looks from Catherine, Princess of Wales, Sophie, Duchess of Edinburgh, and Zara Tindall - each offering effortless inspiration for the warmer months.Where possible, I've included exact product matches, alongside affordable alternatives so you can recreate these elegant looks at any budget.Catherine, Princess of Wales The Princess of Wales was the epitome of summer elegance as she attended the DMMI Royal Charity Polo Cup at Guards Polo Club. She showcased her signature refined style in a Temperley London dress, teaming the elegant design with her trusted Camilla Elphick Lucia slingback pumps, Sezane Gabrielle earrings, Halcyon Days bracelet and Ralph Lauren cat-eye sunglasses.The past-season frock proved to be the perfect choice for the occasion, featuring a flattering square neckline, feminine fit-and-flare silhouette and monochrome gingham print.Although Kate's exact dress is no longer available to purchase, fans of her timeless style need not worry. There are plenty of high street alternatives that capture the same sophisticated summer aesthetic without the designer price tag.Style your chosen piece with a classic tote bag and ballet flats during the day, switching to strappy heels and a raffia clutch for effortless evening glamour.Sophie, Duchess of Edinburgh If you're searching for a staple summer dress to see you through the heatwave, Sophie, Duchess of Edinburgh, may have found it.A longtime fan of Chelsea-based independent label Lexy London, Sophie has worn several of its pieces over the past year.For a recent visit to an eye impairment charity in Jersey, she stepped out in the brand-new Tara dress in a Pink Trellis print. I love how the cotton design feels both polished and effortless, with its pull-on silhouette, adjustable drawstring waist and floaty, tiered midi skirt. Meanwhile, the elegant puff sleeves that fall to the elbow offer just the right amount of coverage without feeling bulky.Perfect for everyday styling, it works just as well with flat sandals or trainers as it does glammed up with heels for a special occasion. Sophie accessorised with Jimmy Choo metallic espadrille wedges and diamond jewellery from Jewels Adore and Asprey London, creating a flawless summer ensemble. Recreate the look for less Zara TindallStriped dresses are a perennial summer staple, and one royal fan leading the trend is Zara Tindall.The daughter of Princess Anne embraced the timeless look at this year's Wimbledon Championships, stepping out in a sold-out Rebecca Vallance midi dress. Styled by Annie Miall, Zara looked effortlessly elegant in the pastel blue and white design, which featured puff sleeves - a signature detail in her wardrobe - a sash belt and classic fit-and-flare silhouette.She completed the look with her go-to Emmy London ivory court shoes, Finlay sunglasses and a new raffia bag from Strathberry.Breezy striped dresses are a must-have for summer. They're effortlessly chic, easy to style for everything from garden parties to weekend brunches, making them the ultimate throw-on-and-go outfit.Recreate the look for less