The Best Maternity Swimwear for a Bump

There is a particular kind of glamour to a swimsuit that knows exactly what to do with a bump — to drape, to stretch, to flatter the new curve rather than apologise for it. The truth most maternity ranges miss is that you rarely need a maternity label at all; you need clever fabric, considered cut, and a few brands that understand a changing body. Consider this the edit we'd pack for a babymoon, with a list of names that carry you elegantly from a barely-there first trimester to a very present third.

Hunza G — the crinkle that grows with you

If you buy one swimsuit for your entire pregnancy, make it a Hunza G. The cult crinkle-stretch fabric is genuinely one-size — it ripples and expands with a bump and snaps back afterwards, which makes it the rare investment that spans all three trimesters and the months beyond. A classic seersucker one-shoulder or scoop one-piece skims a belly beautifully and photographs like a dream.

This is the maternity swimsuit that doesn't look like one, which is rather the point. Shop Hunza G

Melissa Odabash — ruching that does the work

Few designers understand strategic draping like Melissa Odabash, whose ruched one-pieces and gathered side-seams were practically made for a bump. Soft, side-cinched panelling moves with you and creates a flattering line over a fuller middle, while the polished gold hardware keeps everything firmly in resort-glamour territory.

It's the kind of swimsuit that earns its place at a beach club lunch as readily as a hotel pool. Shop Melissa Odabash

Seafolly — the supportive one-piece

When the bust arrives ahead of the bump, support becomes non-negotiable. Seafolly's one-pieces are built with proper underbust structure, adjustable straps and DD-cup options — the practical engineering you want when everything is shifting weekly. Look to their twist-front and wrap styles, which draw the eye up and skim soft over the middle.

Grown-up, beautifully made and forgiving in all the right places. Shop Seafolly

Panache & Bravissimo — for a fuller bust

Pregnancy and a growing cup size go hand in hand, and this is where dedicated swim-fit specialists earn their keep. Panache builds swimwear on lingerie principles — moulded cups, underwiring that genuinely supports, and a band that anchors rather than rides up — in a range of bust sizes most resort brands simply don't cut. Bravissimo offers the same thoughtful engineering with a tankini option, ideal if you'd rather have a little adjustable coverage over the bump.

Comfort and lift without compromise, which is precisely what a changing chest needs. Shop Panache

Hermoza — the modest-glamour one-piece

For those who want a touch more coverage as the months pass, Hermoza specialises in elegant high-neck and longer-line one-pieces with the kind of timeless, retro-inflected cut that flatters a bump without clinging. The fuller silhouette skims rather than grips, and the considered support means it holds its shape beautifully as you change.

Quietly chic, endlessly photogenic, and forgiving from one trimester to the next. Shop Hermoza

Monday Swimwear — the bump-friendly bikini

Who says a bump can't go two-piece? For those who prefer a high-waisted bikini or a tie-side that adjusts as you expand, Monday Swimwear offers buttery, full-coverage bottoms that sit comfortably under the belly, paired with genuinely supportive tops in extended cup sizes. A high-leg, high-waist set frames a bump rather than fighting it — endlessly flattering and beach-honeymoon ready.

Proof that maternity swimwear can be every bit as covetable as the rest of the rail. Shop Monday Swimwear

How to fit and style swimwear for a bump

A few rules make all the difference. Prioritise stretch and recovery fabrics — crinkle, ribbed and high-elastane jersey expand with you, so you can often size up in your usual brand rather than hunting for a maternity tab. Ruching and twist-front detailing are your allies: they draw the eye and give fabric somewhere to go. For support, fit the underbust band snugly and let adjustable straps take the strain off your shoulders, and choose bottoms that either sit high over the bump or low beneath it — never straining across the middle. Finish with a throw-on linen shirt or kaftan from Melissa Odabash, and you're as ready for a beach club as a hotel sun-lounger. The goal isn't to hide a bump — it's to dress it as the rather lovely thing it is.