The Best Swimwear for Teens & Young Women

There is a particular kind of swimwear shopping that arrives somewhere between fifteen and twenty-five — the moment a girl stops borrowing her mother's resort one-piece and starts wanting something that is unmistakably hers. It should be flattering but not fussy, grown-up but not severe, the sort of thing that survives a day of actual swimming and still photographs beautifully at golden hour. The good news is that the brands doing this best in 2026 have finally understood the assignment: cut for real bodies, made to last, and pretty enough to feel like a treat. Below, the pieces we would happily recommend to a younger sister, a goddaughter, or our own slightly-younger selves.

The fashion-girl pick: Frankies Bikinis

If there is one label that defines the modern young woman's swim wardrobe, it is Frankies Bikinis. Born in Malibu and beloved by a generation raised on Pinterest mood boards, the brand does the cheeky-but-not-too-cheeky bikini better than anyone — ruched bandeaus, delicate ribbed triangles, the occasional whisper of broderie. The fit runs young and confident without tipping into anything a parent would balk at, and the prints (think strawberry, gingham, soft florals) are made to be worn well beyond the pool. It is the swimwear equivalent of a first proper handbag: a small luxury that feels like a rite of passage. Shop Frankies Bikinis.

The do-everything classic: Hunza G

Every young woman deserves one piece of swimwear she never has to think about, and for years now that piece has been a Hunza G. The cult British label's crinkle fabric is the great democratiser of the swim world — it genuinely stretches to fit a remarkable range of shapes, which makes it ideal for teenage bodies still finding their proportions. One size, one fabric, an endless run of sorbet shades and timeless silhouettes (the square-neck swimsuit is a perennial). It is the rare buy that feels both of-the-moment and entirely future-proof. Shop Hunza G.

The everyday luxury: L*Space and Vitamin A

For the young woman who wants quality without the full designer outlay, two Californian names sit comfortably in the sweet spot. L*Space leans playful and pretty — scalloped edges, smocked bandeaus, the kind of mix-and-match separates that let a budding personal style breathe. Vitamin A, meanwhile, is the grown-up's choice: sculptural, sustainably made from recycled fibres, and cut with the sort of clean confidence that suits a young woman stepping into her own. Buy a top from one and bottoms from the other; nobody will know, and the result will look considered beyond its years. Shop L*Space or Shop Vitamin A.

The modest edit: Lyra, Cover and Sea Level

Modesty is a style, not a compromise — and the brands that understand this make some of the most elegant swimwear on the market. Lyra specialises in full-coverage and burkini-style pieces that move beautifully in the water without clinging, in colours that feel current rather than dutiful. Cover, the LA label adored by the fashion set, makes long-sleeved rash-style swim tops and tunics so chic they verge on resortwear. And for the Australian school of relaxed, sun-smart cover-up — rash vests, high-neck one-pieces, longer-line bottoms — Sea Level is the quiet hero. All three prove that a young woman can stay covered and look every bit as polished as the girl in the string bikini beside her. Shop Cover.

The sporty serious-swimmer: Speedo, Arena and Form

Not every young woman is shopping for the beach — some are doing laps before school, training for a county gala, or simply prefer a suit that stays exactly where it is put. For them, the heritage performance names remain unbeaten. Speedo is the dependable all-rounder, with chlorine-resistant fabrics built to outlast a season of training. Arena offers a slightly more competitive, racer-cut edge for the genuinely fast. And Form is the smart newcomer worth knowing — sport one-pieces with built-in support and a sleek, modern aesthetic that does not look out of place on Instagram. A proper sports swimsuit is one of the best-value buys in this entire edit. Shop Speedo.

The period-proof option: Modibodi and Ruby Love

It is the conversation no one had with us at fourteen, and it has quietly become one of the most useful innovations in young women's swimwear. Period swimwear — bikini bottoms and one-pieces with discreet, leak-resistant lining — means a swimming lesson or a beach holiday need never be missed or anxiously navigated again. Modibodi, the Australian pioneer, makes styles that look like ordinary, pretty swimwear and perform invisibly. Ruby Love offers a wider range cut specifically with teens in mind, including full-coverage shorts and skirted options for those who want a little more security. For peace of mind alone, it is worth a place in every young woman's drawer. Shop Modibodi.

On fit, styling and buying well

A few editor's notes, whatever you choose. Buy for the body you have now, not the one a vanity-size label promises — a suit that fits properly is infinitely more flattering than one a size too small. Look for adjustable straps and tie sides on younger frames still changing shape; they buy you longevity. For comfort and confidence, a higher neckline and a fuller bottom often read as more sophisticated, not less, on a young woman. And remember that swimwear is half the outfit: a crisp white shirt, a linen sarong, or a pair of good sandals will take any of these pieces from poolside to lunch. One excellent suit beats three forgettable ones — spend a little more, wear it for years, and let it become part of how she remembers her summers. For more of our favourites, browse the edit.