Comfy, Sexy Swimsuits for Bigger Busts That Are Actually Supportive

May 01, 2024
Victoria Bouthillier

In the world of swimwear, swimsuits that are both sexy and supportive are a rarity.

For some reason, the sexy-supportive nexus can be a difficult balance to strike. And, if you have a larger bust, you may have written off certain styles—like string bikinis—altogether for lack of support.

If you're part of the double D cup club, and want to get in on trendy bikinis and classic styles that flatter, you should be able to have it all. For some, that might look like extra coverage for a comfortable fit while, for others, that might take the form of a swimsuit that has both style and support in spades.

In our humble opinion, having a full bust should be an asset to finding your summer swimsuit—not a drawback. That's why we're giving you a crash course on what to look for in swimsuit support, and taking you through our favorite styles for bust support.

Unmatched Support: What to Look For

Knix model wearing the Scoop Bikini Top in Mango and Sculpt High Rise Swim Bottom in Oceana display: full

Finding swimsuits for big busts is a matter of finding a flattering fit that both looks good and feels supportive. More than just finding the right size, it's about smart design. And, in this case, that can all be done without underwire support.

The cornerstone of any great swimsuit is being able to move around comfortably without spillage. Not that we're against nip slips or some tasteful side boob, but if support is what you're after, swimsuits designed for larger busts incorporate essential features that provide this much-needed comfort, including:

  • Under-bust support, which adds lift

  • Thick, adjustable straps, for comfort through long beach days

  • Built-in bra cups, which accommodate larger bra sizes and enhance support

Now, it's just a matter of finding these support features in your favorite swimwear styles. Ahead, you'll find flattering fits and size-inclusive designs that prove you don't have to sacrifice style for support.

Wear the String Bikini

Sarah Landry wearing the Triangle Bikini Top and Rosette in Mango display: full

You've never met a string bikini like this one. If you've been deceived by the lack of coverage and support of string bikinis past, the Triangle Bikini Top and String Bikini Bottom will restore your faith in this classic cut.

This minimalist suit has removable cups and adjustable ties so you can customize your fit, making it as full coverage as you want. Feeling too basic? Pair this power suit with a floral rosette or colorful sarong for a full beach outfit.

Classic One-Piece Swimsuit

Knix model wearing the Deep V One Piece Swimsuit in Feline display: full

Seasons come and seasons go, but classic one-piece swimsuits remain an eternal mainstay. Our version of the Classic One Piece Swimsuit features Leakproof protection, quality fabric, gorgeous fit—and instant confidence.

It's a timeless style with a fit we've spent years perfecting. When it comes to breast support, you'll find a built-in shelf bra, adjustable straps, removable cups, and thicker straps for plus cups for added support.

For a one-piece with a little more flair and a little less bust coverage, opt for the Deep V One Piece Swimsuit. This cleavage bearing look gathers at the bust for a full plunge neckline that still offers essential support for larger bust sizes thanks to its sturdy straps and built-in bra cups.

Adventure-Ready Swimwear

Sarah Landry wearing the Short Sleeve Zip Cropped Swim Top and Sculpt High Rise Swim Bottom in Oceana display: full

If you have a larger bust, finding extra support for leisurely days by the pool is one thing—but what about frolicking on the beach, catching waves, and other rigorous water sports? The latter, decidedly, demands more support. So, what's a D cup to do?

This is where the Short Sleeve Zip Cropped Swim Top really shines. This bikini top's sporty flair isn't just for show, it also has lined support, removable cups, and an exposed zipper—so you can show off as much or as little as you want to.

Hourglass Silhouettes

Knix models wearing the Cinch Leakproof Shaper One Piece Swimsuit in Black and Feline display: full

The pitfall of so many swimsuits that offer big bust support is that they lack in other areas—namely being shape and style. For a cinched, hourglass look with Leakproof protection to boot, there's the Cinch Leakproof Shaper One Piece Swimsuit.

This swimsuit is designed with unique contouring construction that smooths and shapes, including a sexy lace up back that can be molded to your natural shape. Created to fit on the tighter side, its built-in bra provides ton of bust support so you can move around while feeling like your most confident self.

Customizable Comfort

Knix model wearing the Scoop Bikini Top in Mango display: full

If what you're after is the perfect combination of sporty and sleek, look no further than the Scoop Bikini Top. Customizability is the hallmark of swimwear with adequate support for large busts, and this bikini top offers everything from adjustable straps to removable cups.

Aside from built-in support, what's also key is that the underband doesn't dig in—because the only thing more annoying than tan lines are band marks. That's why we've spent years perfecting this swim top's design for supportive, free-feeling wear.

Plunge Bikini Tops

Kniz model wearing the Deep V Bikini Top and Leakproof Bikini Bottom in Lush Green display: full

Take the plunge on a sexier (but equally supportive) swimwear style with the Deep V Bikini Top. What we love most about this suit—aside from its ability to make your boobs look amazing—is its thick underband, ruched cups, and sturdy bikini straps. For extra adjustability, the triple-row back closure can be adapted to fit your unique shape.

In other words, our deepest V bikini top is simply to dive for. Plus it can be paired with a wide range of looks, from sporty swim shorts to sultry high waisted bottoms.

Single Strap Support

Knix model wearing the Deep V Bikini Top in Oceana display: full

We know what you're thinking: how can a single-strap bikini top offer big bust support? Call it gravity-defying magic, but the spicy and sophisticated One Shoulder Bikini Top is up to the task.

As figure-flattering as it is fashion-forward, this single shoulder bikini top serves up asymmetrical looks that turn heads. Though, it's worth noting for those who are looking for a more customized fit: this look is supportive, but non-adjustable.

Finding the perfect swimsuit for large busts usually involves a trifecta of balancing support with comfort and style. Whether it's a classic one-piece, trendy bikini, or mix and match look, the holy grail of swimsuits is one that makes you feel confident and free.