Plus Size Tankinis: Flattering Swim Tops

A tankini is a two-piece swimsuit with a tank-style top and separate bottoms, giving the coverage of a one-piece with the flexibility of a two-piece. Plus size tankinis come in a full range of sizes and, in the supportive styles, are built with underwire, molded cups and adjustable straps for a fuller bust.

Many do. Supportive tankini tops are built with underwire, molded full cups, a built-in shelf bra or power-mesh lining, plus adjustable straps — the same features you'd want in a good swim bra. For a fuller bust, an underwire or molded full-cup top gives the most secure lift and hold.

One with real support in the top: underwire or molded full cups, adjustable straps, and ideally a supportive band or built-in bra. These lift and separate the way a swim bra should, so a fuller bust stays contained and secure in the water rather than relying on the fabric alone.

Yes — because they're separates, you can size the top to your bust and the bottom to your hips. That's one of the biggest advantages of a tankini over a one-piece for anyone who's a different size top and bottom. Check each piece's size chart, as tops and bottoms are often sized differently.

Yes — a blouson (loose, gathered) or ruched tankini skims the midsection rather than clinging, and a longer top covers more. Power-mesh lining adds light shaping. You keep full bust support in the top, so tummy coverage and bust support aren't a trade-off.

A tankini covers the midsection like a one-piece but lets you mix sizes and take bathroom breaks easily. A one-piece gives the most seamless coverage; a bikini the least. If you want coverage plus flexible sizing and support, a tankini is the middle ground. See one-pieces or plus bikinis.

The top should contain the bust fully with no spillage or gaping, the band and straps should feel secure without digging, and the length should cover as much midsection as you want. Adjust the straps for lift. Swim fabric relaxes slightly when wet, so it should feel supportive when dry.

Any swim bottom — high-waisted bottoms for tummy coverage and a defined waist, a swim skirt for the most coverage, brief or hipster bottoms for everyday, or bikini bottoms for less. The freedom to pair and size the bottom separately is the point of a tankini.

Some do — look for power-mesh lining or a firmer, closer body for light shaping, or a blouson cut to skim rather than compress. Tummy control in swimwear is gentle smoothing, not firm shapewear, but it noticeably cleans up the line under the fabric.

It varies by brand, but plus size swim generally spans roughly 1X–4X or up to bra sizes in the high 30s to 40s bands with full cups, depending on the style. Because tops and bottoms are separate, sizing each piece is easier — always check the specific size chart for the style you're buying.

Rinse it in cool water after every swim before chlorine or salt dries in, hand-wash gently, and air dry in the shade rather than machine-washing or tumble-drying. Avoid wringing and rough poolside surfaces. This keeps the elastic, cups and colour in shape for the whole season.