If you want one brand, my pick is Summersalt for the best combination of flattering silhouettes, supportive construction, and a polished vacation look. Good Housekeeping’s 2026 testing named it Best Overall, noting that its suits are lightly compressive, smoothing, and available in sizes 0–24; testers—including larger-cup wearers—found them supportive.
My shortlist
🥇 Best overall: Summersalt
Best for: curves + waist definition without looking overly “shapewear-y”
The Perfect Wrap is particularly appealing for a tropical trip because the wrap shape defines the waist while the substantial fabric provides support.
The Sidestroke is another strong option if you want more coverage and a very secure fit. Travel + Leisure tested Summersalt among its supportive-suit picks.
Sizes: 0–24, with standard and long-torso options.
💪 Best if bust support is your #1 priority: Panache Swim / Curvy Kate
If you're DD+, I'd actually choose a bra-sized specialist over Summersalt. Panache offers cup-sized swimwear through K (UK sizing), while Curvy Kate is specifically designed around fuller busts.
🔥 Best for maximum shaping: Miraclesuit
If you want serious tummy/waist sculpting, Miraclesuit is the standout. Its signature fabrics and wrapped silhouettes are specifically engineered for strong compression and shaping.
🌴 Best practical/value choice: Lands' End
Especially good if you want DD+ bust support, adjustable straps, tummy control, or long-torso options without paying luxury prices. Its Tugless suits are particularly well regarded for staying put.
One important distinction: “curvy” and “full-busted” aren't necessarily the same fit problem. If your main issue is a larger bust relative to your band/waist, bra-sized swimwear is likely to outperform standard S–XL sizing because the cup and band can be fitted independently.
If you tell me your usual dress size, bra size, and whether you want a one-piece or bikini, I can narrow this down to 3 specific suits that would be especially flattering for your proportions.
For a tropical beach vacation where you want to feel secure, sculpted, and confident, a few standout online swimwear brands specialize explicitly in flattering and supporting curves. Because "flattering and supportive" can mean different things depending on whether you want high compression, bust support, or customized torso fits, the top choices break down by what they do best:
Miraclesuit
Best For: Ultimate tummy control and structured shaping.
Why it's great for curves: Famous for their promise to make you look "10 lbs. lighter in 10 seconds", Miraclesuit uses proprietary Miratex fabric, which has three times the spandex of ordinary swimwear. They offer dedicated plus-size and DD-cup options featuring hidden underwires, engineered draping, and sweetheart necklines that emphasize the bust while firmly smoothing the midsection.[2][3]
TA3(specifically the Brazilian Plungey)
Best For: Waist-sninching, dramatic contouring, and big-bust support.
Why it's great for curves: TA3 was founded by an ex-industry designer specifically to stop swimsuits from rolling down or lacking structure on curvy bodies. Their suits feature heavy-duty corset-like compression on the waist, lace-up backs that let you adjust the tightness, and deep plunges that actually keep larger busts contained and supported without spilling over.
Summersalt(specifically The Sidestroke)
Best For: Athletic-yet-chic shaping and a body-inclusive fit.
Why it's great for curves: Taking 1.5 million body measurements from 10,000 women to engineer their fits, Summersalt's compression fabric feels like luxury shapewear without feeling suffocating. Their iconic diagonal-stripe Sidestroke suit and their supportive balconette one-pieces offer incredible torso length options and stay securely in place when you're moving around in the surf.
Best For: Customizable strap/torso support and classic, elegant coverage.
Why it's great for curves: Andie lets you choose long-torso options (a lifesaver for curvy and tall frames) and offers adjustable or thick supportive straps. Their fabric has a subtle, high-quality compression that hugs curves smoothly, and styles like the *Malibu * let you adjust the neckline coverage to your comfort level.[2][3]
To help narrow down the ideal choice, tell me:
Do you prefer a one-piece or a bikini/high-waisted set?
Are you looking for heavy-duty tummy compression or underwire bust support?
