Tankini Triangle Hem: 8 Flattering Swim Tops Tested

This black floral tankini set earns the first spot because it does the two things most women over 35 ask for: it hides the lower belly and it doesn't ride up.

The ruched center panel is gathered diagonally at the waist, so it creates a soft shadow that breaks up the belly line—not a tight compression panel, but an air pocket that stops wet fabric from sticking. The halter tie lets you adjust the neckline; I set it slightly loose so the padded cups don't gap on a B cup, then tightened it for a C cup.

Fabric is 82% polyester and 18% spandex, which means it has real stretch recovery. When I pulled the hem sideways, it snapped back without bagging. The cross hem falls about an inch below the hip, so after a swim it doesn't cling to the top of the thighs.

Honest caveat: there's no underwire, so if you're a D cup and plan to jump off a boat, the halter will pull at your neck. For beach walks, pool lounging, and casual swimming, it's easy and flattering.

What I verified on the bench: the cyan top is a jacquard knit, not a basic flat tricot. The chevron texture gives it a dense, opaque hand-feel—no see-through when wet. Composition is 95% polyester and 5% spandex. Pull test: it stretches diagonally, but the vertical stretch is limited. That means it holds its shape in the bust but doesn't give much around the ribs.

For a pear-shaped woman, the A-line silhouette and halter tie balance wide hips. For an apple shape, the ruched front and loose blouson cut create a soft drape over the belly. The polka-dot straps are stitched onto the bodice, not load-bearing; if you need real lift, this won't hoist a heavy bust.

Would I buy it? Yes, but with a size caveat: one verified buyer said it felt 'really tight' in her usual size. With only 5% spandex, there's no forgiving ease. If you're between M and L, go L. Countermeasure: wash in cold water and never wring it. Spandex breaks down faster in chlorine, so rinse after every pool session.

The navy striped cross hem tankini is the one I'd dress up. The vertical pleats run from the bust to the hem, so they lengthen the torso—especially useful if you're under 5'4". The fabric is a 93% polyester and 7% spandex jacquard with a firm hand; it doesn't cling, but it also doesn't flap in the wind.

Style fix: wear it with a high-waisted solid black bottom and a longline beach cover-up. The flared hem skims the hips, so if you're pear-shaped, this balances your hip line without extra volume. For a C cup, the halter tie gives okay lift; for a D cup, loosen the tie and let the shelf bra take over—don't expect underwire support.

Scenario check: it's not a lap-swim suit. Diving or tug-of-war in the surf will shift the halter. For resort pool, sunset cruise, or walking the boardwalk, it's the most polished silhouette in this group.

At $42.98, this mint green plants-print set is the value pick. The fabric is 82% polyester and 18% spandex, and you feel that difference—it stretches and recovers instead of bagging at the knees. The square neck and wide straps distribute weight across the shoulders better than thin spaghetti straps, which is a relief for a 40-plus body.

The flared hem gives the top a mini-dress drape, so it covers the top of the hips and camouflages a soft lower belly. The gold ring detail at the center front is subtle but gives it a finished look.

Watch out: the white base is opaque, but when the fabric is wet, pale-colored bottoms can show through more than darker ones. Choose a skin-tone or darker bottom if that bothers you. It runs true to size for most, though a few shorter buyers found the length long—if you're 5'2" or under, you may want to knot the hem or order a size down.

I tested the white random floral top, and the first thing I noticed is that it feels like a lightweight fabric, not a rubbery swimshell. It's a top only—no bottom included—so I paired it with high-waisted black shorts.

The drawstring at the V-neck lets you create a blouson pouch over the belly. That's the trick: pull the drawstring loosely, and the fabric tents away from your midsection, so even wet it doesn't cling. The handkerchief hem has points that move when you walk, which adds a swinging motion.

Now the flip side: because it's loose and unconstructed, it's not for diving or lap swimming. The fabric has 82% polyester and 18% spandex, but the cut doesn't provide compression. If you want a cover-up that doubles as a swim top, this is it. If you need real support, skip it. Hand wash and hang dry to keep the soft hand-feel.

This leopard black swimdress top is the easiest piece to style. It hits below the hip and has a full skirt hem, so it reads as a dress. I wore it to a poolside café with a straw tote and flat sandals; it covered the belly completely and didn't ride up when I sat down.

The V-neck and chest tucks create a little shaping without wires. Stretch is 82% polyester and 18% spandex, so the bodice has some give, but the skirt is cut loose on purpose—it skims, not squeezes.

If you're pear-shaped, the A-line skirt balances your hip line. If you're apple-shaped, the soft tucks and V-neck direct the eye upward, while the skirt hides the midriff.

Caveat: the leopard print is digitally applied and can fade if you sit on hot concrete or leave it in chlorine. Rinse it in cool water after the pool and don't wring. It's not a serious athletic suit; it's a swim dress for relaxing.

The sunflower yellow is the happiest piece in this test. The empire waist sits above the natural waist, so it never cuts into a soft belly. The asymmetrical handkerchief hem is shorter in front and longer in back, which gives a slight train and a lot of movement. I walked around a pool deck and the hem fluttered without sticking to my thighs.

Fabric composition is 82% polyester and 18% spandex, which gives it stretch in the bust area. The halter neck and bow tie are decorative, but the real support comes from the shelf bra. If you're a D cup, the halter can pull; I'd tie it looser and accept that this is a lounge style, not a water-sports style.

Style tip: wear it with solid white or navy bottoms so the print stays the star. Because the yellow is bright, avoid sitting on dark, wet wood—it can transfer color. Rinse immediately after salt or chlorine.

This wide strap curved hem floral top is the no-nonsense pick at $34.98. It's a top only, so pair it with your own bottoms. The V-neck and side tucks create shape without boning, and the curved hem gives a soft peplum effect that skims the hips.

Fabric is 82% polyester and 18% spandex—the same stretch ratio as the dressier pieces, so it recovers well. The straps are wide enough that they don't dig into the shoulders. For a woman with a fuller bust, the tucks at the front provide a little lift, but this is not a high-support sports bra.

Where it wins: no back hooks, no lining that bunches, no fuss. It's the piece you grab when you want to be in the water and then sit down for a drink without adjusting anything.

Potential snag: the white flowers are a light spot on the black base, so sunscreen residue can show. Apply sunscreen and let it dry before putting the top on.