Start with the Smart & Sexy Full Busted Underwire for bra sizing and lightly lined three piece cups. The seven picks below are bikini tops, so bottoms are a separate purchase. We compare what each listing says about sizing, coverage and adjustments, and we say when a listing describes a larger bust without naming a cup size.
For styles beyond these tops, see our swimwear guide. Here, the useful differences are underwire versus bralette construction, named cup letters versus plus sizing, and how the straps and back adjust.
Best overall: Smart & Sexy Full Busted Underwire
Best overall: the Smart & Sexy Full Busted Underwire, because its listing combines bra sizing, encased underwire and lightly lined three piece cups for full busts.
The listing describes a long lined top with thick adjustable straps and a double G hook back closure. The linked option is Fresh Water Pearl Print in 36DD. It holds 4.3 stars from 4,384 ratings, the largest count among these seven picks.
It suits anyone who buys swim tops by bra size and wants underwire. The honest catch: it is a top on its own, and the rating is pooled across sizes and colours. The selected 36DD label is not an Australian size conversion or a statement of the full size range.
Best for D to F cups: Body Glove Smoothies Solo
Best for D to F cups: the Body Glove Smoothies Solo, because the listing names D, DD, E and F cups and describes a two way back for adjusting fit and support.
The listing gives underwire construction, removable soft cups and smooth microfibre fabric with a matching lining. Its material composition is 80 percent nylon and 20 percent spandex. The linked option is Cactus in DD, and it holds 4.3 stars from 1,451 ratings.
It suits D to F cups who want named cup sizes and removable cups. The honest catch: bottoms are separate. Its support features and the cup letters still need to match your chosen size.
Best D to DD scoop neck: CRZ YOGA D to DD Scoop Neck
Best D to DD scoop neck: the CRZ YOGA D to DD Scoop Neck, because it lists a D to DD fit, removable pads and convertible straps.
The listing describes medium coverage, a low scoop neck and side bonding for extra support. Adjustable straps switch between a U back and criss cross arrangement. It also describes smooth, quick drying fabric with four way stretch. The top holds 4.4 stars from 601 ratings.
It suits D to DD cups who want a scoop neckline and a choice of strap arrangement. The honest catch: the stated fit is D to DD with medium coverage, the listing names no cup above DD, and the linked option is Black Medium.
Best for plus sizes: Yonique Plus Size
Best for plus sizes: the Yonique Plus Size, because its listing combines full coverage with wide adjustable straps and sizes from 14 plus to 22 plus.
The listing describes a V neck with removable push up pads. It gives 14 plus (US 14W), 16 plus (US 16W), 18 plus (US 18W), 20 plus (US 20W) and 22 plus (US 22W). The top holds 4.5 stars from 207 ratings.
It suits plus size shoppers who want full coverage in the listed sizes. The honest catch: there are only 207 ratings, and the listing gives no cup letters. Although its wording includes bra sized, the listed options above are plus size labels.
Best wire free support: Yonique Cut Out Twist
Best wire free support: the Yonique Cut Out Twist, because its bralette design combines removable cups, a gathered centre front and a wide underbust elastic band.
The listing describes wide tank style straps tapering to adjustable back sliders, plus a pullover back without clasps. It gives moderate coverage and a soft polyester lining, and the listing says it eliminates wire digging. The top holds 4.2 stars from 987 ratings.
It suits anyone who prefers a bralette with no wire and no clasp at the back. The honest catch: the feature text gives no cup letters, and 4.2 is the lowest rating on this page. Choose it for that construction rather than assuming the same fit as a cup sized underwire top.
Best full coverage: Daci Full Coverage Push Up
Best full coverage: the Daci Full Coverage Push Up, because its listing describes ample bust coverage, wide shoulder straps and a self adjusting lace up back.
The listing describes a V neck crossover front and soft removable padding. It says the top gives good support for a larger bust and suggests pairing it with bikini bottoms or boy shorts. The top holds 4.4 stars from 232 ratings.
It suits anyone who wants full coverage with a lace up back. The honest catch: there are only 232 ratings, and the feature text gives no cup letters. Full coverage describes the cut; it does not supply the missing cup size information.
Best rated D to F cup top: Body Glove Solo, Bonnie Pink Plaid
Best rated D to F cup top: the Body Glove Solo in Bonnie Pink Plaid, because its D through F design adds power mesh lining and holds the highest rating here, though from only 17 ratings.
The listing names underwire and an adjustable two way tie back. It says the power mesh lining adds structure and reinforces support. The linked option is Bonnie Pink Plaid in F. It holds 4.6 stars from 17 ratings.
It suits D to F cups who want the power mesh lining and a tie back. The honest catch: there are only 17 ratings, so the higher score rests on very little feedback. The Smoothies Solo has a much larger rating count.
How to choose a bikini top for a big bust
Compare the stated sizing and construction
These are listing specifications, not fit test results. A missing detail means not stated; it does not mean a feature is absent.
Bikini top listing specifications| Top | Sizing stated | Cups or lining | Straps or back |
|---|
| Smart & Sexy | Bra sized; linked 36DD | Encased underwire; lightly lined three piece cups | Thick adjustable straps; double G hook |
|---|
| Body Glove Smoothies Solo | D, DD, E, F; linked DD | Underwire; removable soft cups | Two way adjustable back |
|---|
| CRZ YOGA | D to DD; linked Medium | Removable pads; underwire not stated | Convertible U back or criss cross straps |
|---|
| Yonique Plus Size | 14 plus (US 14W) to 22 plus (US 22W) | Removable push up pads; underwire not stated | Wide adjustable straps; pull on |
|---|
| Yonique Cut Out Twist | Cup letters not stated | Removable cups; soft polyester lining | Adjustable back sliders; no clasps |
|---|
| Daci Full Coverage | Cup letters not stated | Soft removable padding; underwire not stated | Wide straps; self adjusting lace up back |
|---|
| Body Glove Solo, Bonnie Pink Plaid | D, DD, E, F; linked F | Underwire; power mesh lining | Adjustable two way tie back |
|---|
Separate cup sizing from plus sizing
Body Glove names D through F, while CRZ YOGA states D to DD. Yonique Plus Size lists US plus sizes without cup letters. Compare the selected option and its size information before choosing; do not turn a plus size label into a cup size or assume the same Australian equivalent across brands.
Choose the construction you want
Smart & Sexy describes encased underwire and lightly lined three piece cups. Yonique Cut Out Twist describes a bralette with removable cups and an elastic underbust band. The Body Glove plaid option adds power mesh lining. Those are specific differences to compare; the listings do not provide a common support scale.
Pick a neckline and coverage level
CRZ YOGA describes a low scoop neck and medium coverage. Yonique Plus Size and Daci describe full coverage, both with V neck wording. Smart & Sexy calls its silhouette long lined and slimming. These are style descriptions, so choose the cut you prefer without treating slimming language as a promised result.
Look at exactly what adjusts
CRZ YOGA lets its straps switch between U back and criss cross. Daci describes a self adjusting lace up back, while Yonique Cut Out Twist has strap sliders but no back clasp. Decide which arrangement you want to wear, and note that adjustable straps do not mean the band adjusts too.
Read the rating with its count
The plaid Body Glove Solo has 4.6 stars from just 17 ratings. Smart & Sexy has 4.3 from 4,384. That is why the higher scoring plaid top is a specific alternative here, rather than our first recommendation. Neither score tells you how your size will fit, so read the size chart.
Plan the top and bottoms separately
Every pick is a top only. Daci explicitly suggests bikini bottoms or boy shorts, so decide which combination you want before comparing totals. If you are also replacing the rest of your beach kit, our beach bag guide compares bags for your towel and essentials.
Frequently asked questions
What is the best bikini top for a big bust in Australia?
Our pick is the Smart & Sexy Full Busted Underwire. Its listing describes bra sizing, encased underwire, lightly lined three piece cups and thick adjustable straps. It holds 4.3 stars from more than 4,300 ratings, the most of any top here. Body Glove Smoothies Solo is the alternative for named D to F cups.
Which bikini top suits a big bust and plus sizing?
The Yonique Plus Size listing gives full coverage, wide adjustable straps and removable push up pads. Its sizes run from 14 plus (US 14W) to 22 plus (US 22W). Those are the listing's labels, not Australian conversions, and the listing names no cup size.
Which bikini tops suit a DD cup in Australia?
CRZ YOGA D to DD Scoop Neck explicitly lists a D to DD fit, with medium coverage and removable pads. Both Body Glove Solo listings name D, DD, E and F cups. The linked Smart & Sexy option is labelled 36DD; check each listing's size information rather than treating these labels as interchangeable.
What should older women look for when buying bikini tops online?
Choose by the coverage and adjustments you want, rather than age alone. Daci Full Coverage Push Up lists wide shoulder straps and a self adjusting lace up back. Yonique Cut Out Twist offers a pullover back without clasps. Neither listing says anything about age, so choose on coverage and adjustment.
Which bikini top has a slimming style?
The Smart & Sexy listing describes a slimming long lined silhouette, and Yonique Plus Size uses slimming wording for its full coverage top. Treat those as descriptions of styling, not promises about how your body will look. Choose the neckline, coverage and size that you prefer.
Are these bikini tops suitable for G cups or larger?
No listing on this page names a G cup. Body Glove Solo names D through F cups and CRZ YOGA names D to DD. Yonique and Daci describe larger busts without cup letters in their feature text. So we cannot recommend a top here for G cups or larger; our swimwear guide covers more styles.
Do bikini tops for a big bust need underwire?
Underwire is one option in this comparison. Smart & Sexy and both Body Glove Solo picks list it. Yonique Cut Out Twist is the bralette choice, describing removable cups, a wide underbust elastic band and adjustable back sliders; the listing says it eliminates wire digging. Pick the construction you like, then check the size chart for that listing.
Do these bikinis include matching bottoms?
No. All seven recommendations are bikini tops, so plan for bottoms separately. The Daci Full Coverage Push Up listing specifically suggests pairing its top with bikini bottoms or boy shorts. Choose the top for its stated bust fit first, then decide which bottom style you want with it.
What is the cheapest bikini top for a big bust on this page?
Smart & Sexy Full Busted Underwire is our top pick and, on the prices we checked, the lowest priced option here. Its listing still describes encased underwire, three piece cups and adjustable straps. Compare the total for your chosen size and bottoms, since the recommendation covers a top on its own.
