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Marie Claire
Marie Claire
Lifestyle
Halie LeSavage

Flip-Flops and Sweatpants Will Be the 2025 Hamptons Girl Uniform, According to Mary-Kate Olsen

Mary-Kate Olsen walks in the Hamptons wearing sweatpants and flip flops.

On a July 1 walk through the Hamptons, Mary-Kate Olsen asked me to reconsider everything I thought I knew about the elite vacation destination's dress code.

When I think of the Hamptons, I envision Jennifer Lopez riding her bike in vintage Chanel, Jennifer Lopez staging a Ralph Lauren photoshoot in the lavender fields, or Jennifer Lopez shutting down a LoveShackFancy to shop. In other words, I imagine all-out opulence through a fisherman aesthetic filter. Flip-flops and sweatpants aren't anywhere on my radar; they're far too casual for what I expect from A-listers' favorite East Coast enclave. And yet, that's exactly what The Row's co-founder chose to wear for her first sighting of the summer.

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