Heeled flip-flops and thin wedges redefine coastal grandmother style

The coastal grandmother shoe just got a lot more interesting

The coastal grandmother wardrobe has always looked best when it feels unforced, like it was thrown on after a long lunch and a salt-air walk. That is exactly why heeled flip-flops and thin wedges are suddenly making sense here. They keep the ease, but they add a little lift, the kind that works with breezy dresses, white jeans, and summer tailoring without turning the whole outfit precious.

The bigger shift is that flip-flops are no longer trapped in beach mode. Marie Claire’s spring 2026 shoe coverage, along with the broader 2026 sandal cycle, points to a cleaner, more polished direction: barely-there sandals, sleek thong silhouettes, ultra-thin straps, and wedge flip-flops that feel classic but still fresh. In other words, the sandal that once disappeared into a pool tote is now showing up with intention.

Why coastal grandmother keeps evolving

The phrase coastal grandmother has always carried a very specific mood. Lex Nicoleta popularized it on TikTok in 2022, and TODAY tied the idea to Nancy Meyers films and that easy, light-filled domestic fantasy. TikTok’s #coastalgrandmotherstyle page then ballooned into the millions of views, which says everything about how quickly this look became shorthand for relaxed, beach-adjacent polish.

Martha Stewart, for her part, never fully bought the label. In 2022 she pushed back on it, saying she still works every day and is not exactly retired. That tension is part of why the aesthetic still has legs. It is not really about playing dress-up as a retiree in Nantucket. It is about looking calm, refined, and expensive without seeming to try too hard, which is exactly the lane these newer sandals are filling.

The sandals that belong in the wardrobe

The strongest entry point is the heeled flip-flop. Who What Wear was already calling heeled flip-flops a top sandal trend for summer 2025, and the style has only become more convincing since then. The heel matters because it turns the flip-flop from casual noise into something that can actually hold up under a linen dress or a soft summer suit.

Rihanna and Taylor Swift help here because celebrity wear normalizes the shape fast. When a sandal silhouette shows up on women whose style influence can send a whole shoe category into overdrive, it stops feeling like a gimmick. Hailey Bieber is the clearest proof point, though. She wore The Row’s Sacha sandals, a $1,030 pair that turned the heeled flip-flop into something sleek, black, and editorial rather than beachy and disposable. That version belongs in coastal grandmother because it looks clean, not loud.

Thin wedges also deserve a place in the mix. Who What Wear’s summer 2026 sandal roundup highlights wedge sandals, elegant ’90s thong sandals, and decorative details, and Marie Claire’s spring 2026 shoe coverage backs up the same direction with ultra-thin straps and barely-there construction. A thin wedge gives you the easy height coastal grandmother likes, but it does not sink the outfit into stilettos or blocky platform territory. It reads as soft architecture, not performance.

Accept

• Heeled flip-flops in leather or another polished finish, especially in sandy, neutral tones. • Thin ’90s wedges that lengthen the leg without overpowering a dress or trouser hem. • Sleek thong sandals with ultra-thin straps, especially when the silhouette stays minimal. • Wedge flip-flops when they are pared down and quiet, not sporty or chunky.

Skip

• Ornamental sandals when the embellishment becomes the whole story. Coastal grandmother can handle detail, but not chaos. • Beach-only flip-flops that still look like they belong by a hotel pool. • Heavy platforms that fight the drape and ease of the look.

How the runway made the case

This is not just a celebrity mood. On the runways and in street-style coverage, the shape has already been mainstreamed. Marie Claire noted that designers in spring 2026 were building on shoe trends that had worked in past seasons, tweaking them into softer, breezier forms. That meant classic shapes were still there, but stripped down enough to feel new again.

OpéraSport’s spring 2026 runway at Copenhagen Fashion Week pushed the point even further with Havaianas hybrid sandals. That kind of styling matters because it shows how far the humble sandal has moved from pure utility. It is now being treated as a fashion object, not just a convenience piece. Still, the coastal grandmother version only works if the result stays elegant. If the hybrid reads too sporty, it loses the plot.

How to wear them with the rest of the uniform

The real test is not whether the sandal is trendy. It is whether it can disappear into the outfit and let the clothes do the talking. Breezy dresses are the easiest match because the movement in the hem wants something light on the foot. A heeled flip-flop keeps that line open and airy, while a thin wedge gives the whole look a little structure.

White jeans are where the better versions really earn their keep. A minimal thong sandal or slim wedge sharpens the look instantly, especially if the upper is in leather, tan, or off-white. The effect is cleaner than a flat sandal and far more current than a bulky platform. With summer tailoring, the same logic applies. A relaxed blazer, wide trousers, and a sleek thong sandal together make the outfit feel deliberate without looking overworked.

The best coastal grandmother sandals also match the palette. Think sandy hues, creamy neutrals, soft black, and the kind of muted finishes that sit quietly beside draped silhouettes. Marie Claire’s broader shoe coverage leans into that classic-yet-inventive mood, and that is the sweet spot here. The shoe should feel like a punctuation mark, not the headline.

The verdict

Heeled flip-flops and thin wedges belong in coastal grandmother style because they keep the ease and add just enough polish to make the look feel modern. Rihanna, Taylor Swift, and especially Hailey Bieber have helped move the shape out of the beach category and into the real wardrobe, but the shoe still has to earn its place by staying clean, elegant, and unfussy.

That is the whole trick with coastal grandmother in 2026: the best sandals look like they were chosen for a life that moves easily, not for a trend cycle that needs to be noticed.