Underwire Swimsuits

Underwire bra support meets Miratex® shaping in one piece, tankini top, and swim dress silhouettes made to sculpt and support.

Underwire swimsuits give the bust a built-in framework, so the rest of the suit can do its work cleanly. This collection pairs underwire bra construction with Miratex® shaping across one piece, tankini top, and swim dress silhouettes. Choose the neckline and coverage that suit your day: bandeau, sweetheart, V-neck, or high neck, each designed to support fuller busts while the body of the suit smooths, sculpts, and streamlines.

How to choose Underwire swimsuits

What makes a swimsuit with Underwire supportive?

A swimsuit with underwire gives the bust a built-in structure beneath the cup. In this collection, that support pairs with Miratex® shaping, so the bust feels defined while the body of the suit smooths and sculpts.

Which bathing suits with Underwire are easiest to choose?

Start with the silhouette you like to wear. One piece styles create a continuous sculpted line, tankini tops add two-piece ease, and swim dresses add skirted coverage while keeping underwire support built in.

Do swimsuits with Underwire work for fuller busts?

Yes. This collection is built for shoppers who want underwire support, including fuller bust fit needs. Look for bra-sized options, D, DD, and DDD Cup choices where offered, and neckline details that help you feel secure.

Is a swimsuit with Underwire Bra support comfortable for swimming?

It can be. Choose a secure neckline, supportive straps, and the right cup fit for your bust. One reviewer wrote, "What a stunning, figure flattering bathing suit! It gives support, and I can swim laps. Play water games with my grandchildren, and be comfortable in it, for hours at the beach or pool." (Bonnie G., Siren One Piece, September 2026)

What swimwear with Underwire gives the most coverage?

For more coverage, start with one piece swimsuits and swim dresses. A one piece gives uninterrupted shaping through the torso, while a swim dress adds skirted coverage with underwire support at the bust.