[ Women's Swimwear & Bikinis ]

Women's swimwear from Negative is built the same way as our intimates — with a focus on fit first. Our 2026 swim capsule uses an ultra-smoothing, supportive stretch nylon across flattering, classic silhouettes, from cheeky one-pieces to bikini tops and bottoms you can mix and match. Every style is designed with the same engineered fit and premium construction as the rest of our collection, so you get real support without sacrificing the look. Whether you're headed to the pool, the beach, or somewhere in between, our curated edit covers it. Use the filters below to shop by style or coverage.

How to Choose Women's Swimwear

One-Piece vs. Bikini

A one-piece offers full coverage and a streamlined silhouette in a single piece, which many people prefer for its simplicity and support. A bikini top and bottom can be mixed and matched for a more customized fit and coverage level. Both are equally valid choices — it comes down to how much coverage and flexibility you want.

Coverage & Cut

Cheeky and French-cut bottoms sit higher on the hip for more leg exposure, while fuller-coverage bottoms offer more classic coverage. Strappy or one-shoulder tops add visual interest, while classic triangle and bandeau styles keep things simple. There's no single "best" cut. It's about what makes you feel the most comfortable and confident.

Fabric & Support

Our swim styles use an ultra-smoothing, supportive stretch nylon designed to hold its shape in the water and resist sagging over time. Look for a snug (not tight) fit, since swim fabric naturally has more give than it will show once wet.

Building a Capsule

A well-chosen swim capsule includes a supportive one-piece, a mix-and-match bikini, and a cover-up, which covers most warm-weather occasions. Sticking to a cohesive colorway also makes it easier to layer pieces together.

Frequently Asked Questions About Women's Swimwear

How should a swimsuit fit?

A well-fitting swimsuit should feel snug but not restrictive, with straps that stay in place and fabric that doesn't dig in or ride up. Because swim fabric has more stretch than regular clothing, it's normal for a new suit to feel slightly snugger until the fabric relaxes with wear.

What's the difference between a bikini and a one-piece?

A bikini consists of a separate top and bottom, which can be mixed and matched for fit and coverage. A one-piece is a single connected garment that offers more continuous coverage and a streamlined look.

How do I choose a swimsuit cut that flatters my body?

The most flattering cut is the one that makes you feel most comfortable and confident — there's no single correct answer. Higher-cut leg openings and cheeky bottoms tend to elongate the leg line, while fuller coverage and structured tops offer a more classic, supportive silhouette.

How do I make my swimsuit last longer?

Rinsing swimwear in cool water after each wear, avoiding the dryer, and letting it air dry out of direct sunlight all help the fabric and elastic hold up over time. Rotating between multiple suits also reduces wear on any single piece.

Can I mix and match bikini tops and bottoms?

Yes — many of our bikini tops and bottoms are designed to be mixed and matched by size and coverage preference rather than sold strictly as a fixed set.

Explore Related Categories

Complete your poolside look with a cover-up from our Beach & Resort Cover-Ups.

Headed somewhere warm? Shop resort styles in The Island Collection.

For more warm-weather styles beyond swim, browse The Summer Edit.

Packing for a trip? Round out your suitcase with our Travel Essentials.

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