Leave it to stylish royals [1] like Kate Middleton and Princess Mary to start a new Summer color trend. While Kate recently wore her red Catherine Walker coat dress [2], Princess Mary followed suit in a tomato shade at the Royal Ascot days later.

The demure cut of her Marc Jacobs number is notable too — featuring a wrap belt, slightly puffed sleeves, and a single button at the collar, it's a sophisticated daytime look that works wonders in the Summer.

The fact that Mary's showed off this design before is further proof that a piece like this one has major staying power in your wardrobe. Read on to see how she accessorized with drop earrings, complementing bracelets and rings, and a striking floral fascinator, then scoop up a similar dress.

Related:

• 12 Times the Royals Channeled Your Favorite Disney Princesses [3]
• 17 Fashion Facts You Never Knew About Princess Mary of Denmark [4]
• 20 It Bags Princess Mary of Denmark's Got in Her Accessory Closet [5]

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