The String Bikini: Summer 2026's Most Playful Swim Shape
Something is shifting in swimwear. The maximalist cover-ups and architectural one-pieces that defined the last few summers are stepping aside, and the string bikini — once dismissed as the sartorial shorthand of another era — is back at the centre of the conversation. Only this time, it has been rewritten. The next generation does not wear the string bikini the way their mothers did. They wear it because the ties, the knots, the slip and length of every cord have become a form of language. A way of saying something without saying anything at all.
At Mahéquline, our Copenhagen-based studio designs lingerie and swimwear for women who treat what they wear underneath — and on the sand — as the first layer of self-expression. The string bikini, in our hands, is not a throwback. It is the most playful, design-driven swim shape of Summer 2026.
Why the string bikini is having its moment again
Trend cycles rarely repeat. They translate. The string bikini you are seeing now — on Mediterranean balconies, in slow-scroll editorials, layered under linen on the way home from the beach — carries the silhouette of the originals but none of their flatness. The cuts are considered. The fabrics behave. The hardware feels like jewellery, not afterthought. And the woman wearing it is not performing. She is, simply, exactly where she wants to be.
What pulled the string bikini back into focus was not nostalgia but possibility. Triangles adjust to the body. Ties move with you. Two halves of a set never have to match if you do not want them to. For a generation raised on personalisation — playlists, fits, identity itself — that flexibility is everything. The string bikini does not impose. It responds.
The details are the design
A string bikini is, by definition, almost nothing. Which is precisely why every choice within it matters. The depth of the triangle. The weight of the cord. The way the knot finishes at the hip. Our Cioccolato Blu Triangle Bikini Top was built around exactly this kind of thinking — a deep, glossy chocolate-blue that catches sunlight the way silk catches lamplight, soft adjustable straps that you tie how you want them, and a cut that holds the body without flattening it.
Pair it with the matching Cioccolato Blu Triangle Bikini Bottom for a set that looks intentional rather than coordinated, or break the rules entirely and combine it with our Sole Triangle Bikini Top for something brighter — a styling decision that says you read the trend and then decided to write your own version of it. This is what mix and match looks like when it is built into the design from the start.
An outfit under your outfit, and on its own
One of the quiet pleasures of a well-made string bikini is that it does not need a swimming pool to justify itself. Tie the top under a sheer shirt, layer it beneath a slip dress on a humid evening, or let it sit visibly above the waistband of a low-slung skirt — the lines blur deliberately between lingerie and swimwear, which is exactly the way we design. An outfit under your outfit, made to be felt, not just worn.
That is the Copenhagen sensibility at work. Clothes that move with your life rather than against it. Pieces that earn their place in your drawer because you keep returning to them — not because they were cheap, but because they were made carefully enough to stay. A string bikini, made well, becomes something you wear for years. The fabric behaves. The ties hold. The colour stays itself.
How to wear a string bikini the way it deserves
The most interesting women we see wearing string bikinis right now are doing something specific — they are loosening the rulebook entirely. Bottoms tied high on one hip and low on the other. Tops worn over swim, under linen, under nothing. Sets broken up and recombined across the week. The string bikini is the most editable swim shape in your wardrobe, and Summer 2026 belongs to whoever treats it that way.
If you are new to the silhouette, start with a colour you actually love rather than a neutral you think you should buy. If you already live in string bikinis, this is the season to build a small collection of triangle tops and bottoms that can speak to each other — a quiet wardrobe within your swimwear collection that gives you a different outfit every time you reach for it.
Frequently Asked Questions
Is the string bikini flattering on every body?
The honest answer is that flattering is the wrong question. The string bikini is one of the most adjustable swim shapes ever designed — ties move, triangles shift, coverage is yours to choose. What matters is the fit of the cord and the quality of the fabric. When both are right, the silhouette responds to your body rather than asking your body to respond to it.
How do I take care of my Mahéquline string bikini so it lasts?
Rinse it in cold fresh water after every wear — especially after the sea or chlorine — and lay it flat to dry away from direct sunlight. Avoid wringing the ties. Skip the washing machine. Treated this way, a well-made string bikini holds its colour, its shape, and its softness for many summers.
Can I wear a string bikini top as lingerie?
Yes, and we love when women do. The line between lingerie and swimwear has always been more porous than the fashion industry pretends. A triangle top worn under a sheer blouse, a button-down, or on its own at home is an entirely valid second life for a swim piece — and exactly the kind of crossover Mahéquline designs for.
Summer 2026 is shaping up to be the most personal swim season in years. Take your time with it. Tie the knots how you want them. Wear the colours that pull you in. And when you find the string bikini that feels like an extension of you rather than a costume, keep it close — it will be with you longer than the trend.