Coastal Grandmother Style Gets a Summer 2026 Refresh, Bermuda Shorts and Two-Tone Sandals Lead the Way

The Manhattan-to-Hamptons dress code is leaning less precious and more practical. This summer, the coastal-grandmother wardrobe that reads polished in the city and easy by the water starts with calf-grazing Bermuda shorts, streamlined sandals, and lightweight separates that can handle a coffee run, a ferry ride, and dinner by the shore without a costume change.

Who What Wear frames coastal grandmother as the TikTok-coined look created by Lex Nicoleta, a Nancy Meyers-like fantasy built on crisp linens, chunky cardigans, summer tote bags, and slide sandals. That is the appeal in one sentence: it is a lifestyle shorthand, but the clothes are real. The silhouette is relaxed, the fabrics are breathable, and the effect is affluent without looking fussy.

Bermuda shorts are the clearest place to start

If you buy only one thing from this wave of summer dressing, make it Bermuda shorts. Who What Wear calls them one of the biggest summer 2026 trends, and the spring/summer 2026 runways at Hermès, Talia Byre, and Johanna Parv all showed calf-grazing versions. The longer length matters because the fashion set had already been backing away from micro and mini shorts in favor of something cleaner and more grown-up in summer 2025.

That shift is exactly why the silhouette feels so right for coastal grandmother style now. Bermuda shorts carry the ease of a warm-weather staple, but the hemline gives them structure, so they can work with a button-down, a tank, or a soft knit. If your summer wardrobe usually tilts toward dresses because shorts feel too bare, this is the pair that changes the equation. Buy them in crisp cotton, linen, or a tailored twill, with a line that skims the knee rather than clings to the thigh.

Thong sandals keep the look grounded

The sandal story is just as important, because it keeps the outfit from feeling overworked. Who What Wear says thong sandals are continuing from 2025 into 2026, which is useful news for anyone who wants a shoe that feels simple, not seasonal theater. The best versions come in flat leather for daytime and in low heels when you want a little lift without losing the ease.

This is the pair for anyone who lives in relaxed tailoring, oversized shirts, and anything in a natural fiber. A clean thong sandal instantly makes Bermuda shorts feel intentional, and it gives linen trousers that slight off-duty polish the coastal-grandmother look depends on. If you are buying just one version, choose a slim, minimal strap and an understated sole. It should feel like a flip-flop that learned manners.

Two-tone footwear is the sharper update

The more directional move is two-tone footwear, which Who What Wear calls the hottest spring trend and ties to the current appetite for Chanel-style shoes. The signal here is not loudness, it is finish. Two-tone works because it gives a classic outfit a crisp edge, the kind that makes a simple white shirt and long shorts feel styled rather than merely put on.

This is the pair for the reader who already owns the basics and wants one piece that reads current on contact. A black-and-cream or navy-and-beige sandal, especially in a thong shape, brings just enough contrast to wake up linen, denim, or a cream trouser. If the flat leather thong is the everyday workhorse, the two-tone version is the one that makes the wardrobe look edited. The fact that Who What Wear points to Chanel-style enthusiasm, including boutique queues and resale-platform fervor, tells you this is not a sleepy nostalgia play. It is the kind of polished detail people notice.

Lightweight separates keep everything looking coastal, not costumey

The final layer is what keeps the whole thing from collapsing into a trend statement. Crisp linens, roomy trousers, simple tanks, and chunky cardigans are still the backbone of the coastal-grandmother aesthetic, and they are what allow the look to move from city errands to beach vacations without changing character. The trick is to keep the shapes clean and the fabrics airy, so the outfit feels relaxed but never sloppy.

This is also where the style gets its longevity. A linen popover with Bermuda shorts, a cardigan over a tank, a tote that can hold the day’s necessities, and sandals that work on pavement as well as on sand create a wardrobe formula, not a one-off outfit. That matters because the best summer dressing is never about chasing novelty. It is about having pieces that make getting dressed easier when the temperature rises and the calendar gets full.

What to buy first

If you want the highest everyday payoff, shop in this order:

• Tailored Bermuda shorts in cotton, twill, or linen
• A pair of thong sandals you can wear all day
• One two-tone shoe or sandal that sharpens simple outfits
• Lightweight separates, especially linen shirts, easy trousers, and a soft cardigan

That sequence gives you the most mileage with the least effort. It also keeps coastal grandmother style where it looks best, a little crisp, a little relaxed, and entirely believable from New York to London to the shoreline. The summer 2026 refresh works because it does not abandon classic style, it just gives it better proportions and smarter shoes.