One Piece Swimsuits

One-piece swimsuits for D–KK cup with proper bra-sized support — underwired cups, adjustable straps, and styles that hold their shape. A wide range of bra-sized options.

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Curvy Kate Swimwear - Swimsuit Curvy Kate Wrapsody Bandeau Swimsuit BlackCurvy Kate Swimwear - Swimsuit Curvy Kate Wrapsody Bandeau Swimsuit Black
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Regular price $149.95 Sale price $129.95
Curvy Kate Wrapsody Bandeau Swimsuit
Black
Marvell Lane Swimwear - Swimsuit Marvell Lane Sofia Swimsuit BlackMarvell Lane Swimwear - Swimsuit Marvell Lane Sofia Swimsuit Black
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Regular price $219.95 Sale price $110.00
Marvell Lane Sofia Swimsuit
Black
Panache Swimwear - Swimsuit Panache Anya Riva Balconnet Swimsuit BlackPanache Swimwear - Swimsuit Panache Anya Riva Balconnet Swimsuit Black
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Regular price $137.95 Sale price $75.00
Panache Anya Riva Balcony Swimsuit
Black

One piece swimwear with real bra support

Most one piece swimsuits here are sized by band and cup, so you choose them the same way you choose a bra. Most have an underwired cup built into the swimsuit, with adjustable straps and a firm band under the bust that lifts and holds without relying on tight fabric across the chest. For a softer feel, choose a non-wired style from Elomi or the zip-front Rosa Faia Elouise.

Find your style

Choose a plunge swimsuit for a lower neckline, a balcony or full cup style for lift and coverage, a twist-front design that softens through the bust, or a square neck for a classic line. For extra hold through the middle, the PrimaDonna Delray is a full cup control swimsuit.

One piece bathers or a bikini?

A one piece is the easy choice if you like more coverage or want bathers that stay put for laps. Prefer to size your top and bottom separately? Browse bikini tops and tankinis, or see underwire one piece swimsuits for extra support.