Swimsuits for Big Busts That Keep the Girls So Supported
Skip the nip slip!
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As a former member of the itty bitty titty committee—who came into some, ahem, enhancements (hallelujah, healthy weight gain!) at 28—I had to completely overhaul my swimwear collection to find styles that actually work for my big busts. I simply couldn’t get by with two tiny scraps of fabric and a prayer. I needed actual support and coverage to avoid a nip slip.
Consider my years of trial and error (and a fair share of self-loathing try-on sessions) an act of service! I’ve personally tested dozens of styles and found the best swimsuits for full busts—including D-cup and up—that strike the right balance between supportive and sexy.
Just like when shopping for bras, the trick is to find swimwear that provides the lift and shape your boobs deserve, all while keeping the girls under control. What's worse than a super stretchy swimsuit that provides z-e-r-o support? Nothing, especially when you’re trying to Baywatch jog out of the ocean.
Our top picks:
- Best overall: Lands' End SlenderSuit
- Best on Amazon: Upopby Tummy Control One Piece Swimsuit
- Editor's favorite: Abercrombie Curve Love Wide Strap Underwire Bikini Top
- Most supportive: Sea Level Eco Essentials Cross Front Multifit Bra
- Best budget: Hilor Tummy Control One Piece Swimsuit
From sleek one-pieces to barely-there bikinis, we found cute, comfortable, and well-reviewed styles that'll actually provide support and hold your boobs in place. The best swimsuits for fuller busts were chosen based on style, support, comfort, popularity, personal recommendations, and so many reviews to put together this shoppable list of the very best for you.
Best Deal
I can't get over how freaking great this swimsuit looks and feels on my body, which is something I never thought I'd say, considering how hard it is to find a swimsuit with big boobs. It's also quite *literally* one of the most size-inclusive suits I've come across, as it offers a million different lengths, sizes, and bust options. But the real secret behind this reviewer-loved one-piece? Land's End's signature Slendertex® fabric compresses your body so you feel secure and smooth, yet it doesn't affect your comfort level. It's a type of magic I can't put into words, so you're just going to have to trust me and try it for yourself.
| Sizes | 4-24 |
| Cup Range | Up to G |
| Material | Nylon/Spandex |
Amazon testers are brutally honest, so you best bet you'll get the straight-up truth when shopping there. That's why when you see a product with an almost perfect rating from thousands of reviewers, like this swimsuit, you can pretty much bet you've found a hidden gem. I put my faith into the hands of said Amazon reviewers and ordered this swimsuit. One two words: Un-freaking-believable. My boobs have never stayed in place like they did in this suit—I didn't even have to readjust once!
| Sizes | 6-18 |
| Cup Range | N/A |
| Material | Nylon, Elastane |
If you have a larger bust and smaller ribcage (hi, it me), this Abercrombie suit is calling your name. Designed for those who wear a D to F cup and have a proportionally smaller band size, this shimmery bb has adjustable tie straps, unlined cups, and an easy back hook detail that I find really key for a personalized fit. Plus, it comes in two shades and matches *perfectly* with the Cinch Tie High-Waist High-Leg Cheeky Bottom.
| Sizes | XXS-XL |
| Cup Range | N/A |
| Material | Nylon, Elastane |
You don't have to shell out big bucks to get a supportive suit. Enter: this genius one-piece from Hilor, which comes with soft molded bra cups and a twist-front sweetheart neckline that'll keep ya feeling secure all day long. You'll also love the adjustable straps, ruched center panel, and huge variety of color options.
| Sizes | 6-16 |
| Cup Range | N/A |
| Material | Nylon, Spandex |
Complete with built-in cups and side boning for shape and support, this twist-front top from Sea Level (which comes in half-a-dozen colorways) is such a good choice for folks with larger busts. Other fab features include the supportive powermesh lining, adjustable and convertible straps, and matching Mid Bikini Bottoms—though because of the design and fabric, you can easily mix and match bottoms.
Material: 85% Recycled Nylon, 15% ElastaneSizes: 28-38, D-F
| Sizes | 4-18 |
| Cup Range | N/A |
| Material | Nylon, Elastane |
If you're looking for a must-have basic that can double up as a bodysuit, this is your suit! Available in four colors and either a smooth or ribbed design, this Baywatch-esque suit from Andie offers maximum bust support with its underbust seam, removable cups, and thick cross-back straps.
| Sizes | XS-XXXL |
| Cup Range | N/A |
| Material | Nylon, Spandex |
Another great choice for folks with larger busts is this underwire bikini top from Body Glove, which features power mesh and adjustable two-way back straps to keep your girls in place (and, yep, the matching bottoms are just as supportive). It comes in a huge variety of color options, and don't be surprised if you're tempted to snag 'em all.
| Sizes | N/A |
| Cup Range | D-F |
| Material | Nylon, Spandex |
The internet-famous Summersalt Sidestroke is beloved for its compressive fit, full butt coverage, and super-flattering diagonal seaming—not to mention its impressive boob support. There's a reason why this suit has earned a cult following, and if you haven't tried it for yourself yet, then the time is now.
| Sizes | 0-24 |
| Cup Range | N/A |
| Material | Recycled Polyamide |
I've been searching for a push-up swim top that makes me feel supported, keeps the girls in the *perfect* spot without overdoing it, and is equally as cute as it is functional. Alas, I was introduced to Montce swim—i.e., the most adorable swimsuit line that flatters my large chest and makes me feel secure. The "Hayden" top is my fave thanks to the wide, adjustable straps and back closure, the cute sweetheart neckline, and the side seam boning for extra security. Oh, and did I mention Taylor Swift was spotted in another style from Montce while vacationing with Travis Kelce?!
| Sizes | XS-Curve 3 |
| Cup Range | N/A |
| Material | Recycled Polyamide, Elastane |
There's no denying this one-piece suit from Monday Swimwear is sexy AF. Boasting a deep V-neckline and super-wide shoulder straps, I absolutely love this versatile bb for its adjustable bust coverage and supportive waist panel, which is designed to flatter all kinds of bodies. It's available in black and ivory, and it's well, well worth the investment—trust me, I own it myself.
Material: 82% Nylon, 18% SpandexSizes: 28-40, A-G
| Sizes | 28-40 |
| Cup Range | A-G |
| Material | Nylon, Spandex |
It doesn't get much better than this big bust-friendly one-piece from La Blanca. Available in tons of bright colors, this suit features a sexy plunging neckline, removable cups, built-in tummy control panels, moderate butt coverage, and a fun multi-strap cross-back design—not to mention SO many color options.
| Sizes | 30-44 |
| Cup Range | A-DD |
| Material | Nylon, Elastane |
If you're lookin' for the perfectwhite bathing suit for your bridal festivities or next vacation, check out this one from Good American. From its iconic 'Always Fits' line that was made to adapt to your ever-changing body, this underwire bikini top is available in sizes up to 5XL, features stretchy elastane-blend fabric, and adjustable straps. Oh, and did I mention that you won't have to worry about it being see-through thanks to the lining?! *Drops mic, adds to cart*
| Sizes | XS-5XL |
| Cup Range | N/A |
| Material | Polyester, Spandex |
This plunging V-neck one-piece actually holds up big busts (rare for a plunging silhouette) and will give you the most flattering shape thanks to a comfortable compression fabric. Bonus points: you can tighten the adjustable straps for even more support.
| Sizes | XS-3XL |
| Cup Range | N/A |
| Material | Nylon, Elastane |
Wide straps? Check. Removable padded bra? Check. Thick bottom band? Check. This 'kini from Yonique has everything you need to keep big boobs under control—plus, it comes with full-coverage bottoms that feature lattice mesh panels and built-in tummy control, and you can get it in *SO* many color options.
| Sizes | 12-22 |
| Material | Nylon, Spandex |
How to choose the best swimsuits for large busts
Just like when you're shopping for any type of bra, you want to think about how much support you'll need and what kind of activities you'll be doing while frolicking on the beach or at the pool. A few things to keep in mind as you shop:
Consider the style
While compressive swim tops (which work by pressing your breasts firmly to your chest to restrict movement) may work well for smaller chests, those with a larger bust should ideally look for swimsuits with built-in cups that separate and hold your boobs in place. Oh, and if you want to support and lift, then it's best to find a style with an underwire, which helps to create a perkier silhouette.
Check out the straps
Straps are key when it comes to support, and typically, a thicker strap means more stability and less movement (not to mention that thinner straps are far more likely to dig into your shoulders or neck). If you have a bigger bust, then you probably also want to look for straps that are wide, adjustable, and—ideally—convertible, so you can customize your fit and make sure they stay firmly in place.
Find the right fit
Shopping for swimwear online can be tricky, especially if you're someone with big boobs. While browsing, consider whether you'd like a compressive or more relaxed fit, then read reviews to see if you should size up, down, or go with your regular bra size. The best swim tops and one-pieces tend to be those that are fully adjustable so you can customize your fit as needed (which is especially important if you're someone with a larger bust and smaller ribcage).
Why trust Cosmopolitan?
Cosmo’s team of digital fashion experts have decades of combined experience in the industry. They spot relevant trends on the runway before they even hit your TikTok FYP or Insta Explore Page and conduct research across retailers of all kinds—testing many brands IRL—to bring you the best clothing and accessory picks for every season. Basically, we’ve curated the internet to bring you the chicest options like it’s our job (because it is, heh).
Each of our shopping articles adheres to the 15 Percent Pledge and includes products for all sizes. The best swimsuits for big busts were chosen based on style, support, comfortability, popularity, personal recommendations, and so many reviews to put together this shoppable list of the very best for you!
Megan Schaltegger is an NYC-based writer. She loves strong coffee, eating her way through the Manhattan food scene, and her dog, Murray. She promises not to talk about herself in third person IRL.
Corinne Sullivan is the Senior News Editor at Cosmopolitan, where she covers all things celebrity and reality TV. She can tell you everything you need to know about the love lives of A-listers, the latest Bravo drama, and where to shop like the stars. She is also the author of two novels: Yours Always and Indecent.
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