Bikini Tops

Supportive bikini tops in 29 styles, about $25 to $45 — underwire, push up, padded and halter constructions. Mix any top with your favorite bottom at Sunnybikinis.

28 products

Polka Dot Knot String Triangle Two Piece Swimsuit

Polka Dot Knot String Triangle Two Piece Swimsuit

$34.93
Ribbed Underwire Bralette Brazilian Bikini Swimsuit

Ribbed Underwire Bralette Brazilian Bikini Swimsuit

$44.99
Tropical Floral Tie String Underwire Bikini Swimsuit

Tropical Floral Tie String Underwire Bikini Swimsuit

$34.89
Leopard Print Contrast Ruffle Push Up Bikini Swimsuit

Leopard Print Contrast Ruffle Push Up Bikini Swimsuit

$34.61
Contrast Block V Neck Tie Strap Bikini Swimsuit

Contrast Block V Neck Tie Strap Bikini Swimsuit

$34.29
Floral V Neck Tie Back Bikini Swimsuit

Floral V Neck Tie Back Bikini Swimsuit

$34.12
Metallic Cutout Tie String Underwire Bikini Swimsuits

Metallic Cutout Tie String Underwire Bikini Swimsuits

$32.60
Glitter Fringe Underwire Three Piece Bikini Swimsuit

Glitter Fringe Underwire Three Piece Bikini Swimsuit

$31.99

What is a supportive bikini top?

A supportive bikini top is built with structure: underwire, padding, push up cups, wide straps or a firm band. The goal is a top that stays where you put it — in the water, on the towel, and on the walk back to the car.

This edit focuses on tops with real structure — underwire, push up, padded and halter styles — for anyone who wants more support than a plain triangle.

Support, construction by construction

Underwire — a wire under the cup gives a defined shape and keeps a fuller bust lifted. Look for the wire to sit flat against the ribcage, not on breast tissue
Push up — padded cups with a gathered base that lifts toward the center
Padded — a removable or sewn insert that adds coverage and smooths the silhouette
Halter and wide strap — the strap system carries the load; wider straps spread the weight off the shoulders

How to find your supportive fit

The band does most of the work. It should sit level and stay put when you raise your arms
Cups should fill without gapping at the top or spilling at the side. If they gap, go down a cup; if they spill, go up
Straps should hold, not dig. If you keep tightening straps to fix a sag, the band is too loose

Styling supportive tops

Pair a structured top with a simple bottom — a solid high waist or mid rise lets the top be the focus
Color block works: a bright push up top with a neutral bottom
Layer with a light shirt or wrap for off the sand moments

Frequently asked questions

What is the difference between padded and push up bikini tops?

Padded adds a soft insert for coverage and a smoother silhouette. Push up adds structure that gathers and lifts the cup toward the center. Push up is the stronger of the two.

Do underwire bikini tops work in the water?

Yes — the wire sits in a channel at the base of the cup and does not move with the fabric. Rinse and air dry after swimming, as with any swimwear.

How do I size a push up top?

Size on the band first, then check the cups. A push up top that gapes at the top is too large; one that spills at the side is too small.

Which top supports a fuller bust best?

Underwire and wide band constructions carry the most weight. In this edit, look for underwire, push up and wide strap styles — the band is what holds, not the strap.