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A woman modeling a black two-piece bikini swimsuit, featuring a bandeau-style top with a front keyhole cutout and high-waisted bottoms with a side tie, set against a dense background of tropical green palm leaves.A woman wearing a solid black two-piece bikini stands by a swimming pool with a modern house and greenery in the background.
A woman modeling a black two-piece bikini swimsuit in an outdoor setting with lush green palm foliage and a dark fence in the background.A woman modeling a black two-piece bikini with a side-tie high-waisted bottom in an outdoor tropical setting with palm leaves.
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Underwire Balconette Bikini Top

Regular price $139
Sale price $139 Regular price
Why It's Worth It
Shipping calculated at checkout.

or 4 X $34.75 with

E-F cup arriving September. Underwire structure, adjustable under-bust band - built for busts who need real lift and hold.

Bust Support:

Bust Support: Excellent

Colour: Black
Cup Size
Size US 4 / AU 8 / EU 36
XS US 4 / AU 8 / EU 36
S US 6 / AU 10 / EU 38
M US 8 / AU 12 / EU 40
L US 10 / AU 14 / EU 42
XL US 12 / AU 16 / EU 44
2X US 14 / AU 18 / EU 46
3X US 16 / AU 20/ EU 48

Size Guide

ONLY 4 LEFT



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Details

The Underwire Balconette Bikini Top was built for women who've given up on bikinis that don't actually hold you in place. Underwire structure, thick-but-feminine straps, an adjustable under-bust, and thin foam cups so no nipple shows through - and no padding that folds or floats. A cutaway centre-front detail and open neckline keep it looking chic and modern.

UNDERWIRE SUPPORT - structured underwire delivers genuine lift and hold, built for busts who need more than a triangle top, larger bust friendly
CUP SIZES - Suits a range of cup sizes from B-F. E-F cup sizes arriving September
ADJUSTABLE FIT - customisable under-bust band lets you control compression and fit, not just size
FOAM CUPS - thin foam lining for modesty and a natural, rounded shape, no show-through, no stiff padding
HARDWARE - brushed gold Fearless hardware for a polished finish
FABRIC - chlorine-resistant Luxe Crinkle (chlorine resistance 4/5)
SIZE RANGE - XS-3X (Australian sizes 6-20)

Pairs beautifully with the Side Tie High Waisted Bottoms.

Shop All Bikini Tops

Fabric & Care

This swimsuit is crafted from our high quality LuxeCrinkle fabric - made using recycled plastic bottles and pre consumer waste. Soft, supportive and planet friendly.

Outer: 84% recycled polyamide, 16% spandex
Lining: 75% recycled nylon, 25% spandex
Power mesh: 85% polyamide, 15% spandex

Sustainability isn’t just about recycled materials - it’s about choosing well made pieces that last season after season. With the right care, your Fearless swimwear will keep looking incredible for years.

Care Tips:
  • Rinse in fresh water after every wear, especially after pools or spas
  • Cold hand wash or gentle cold cycle, separately, to prevent colour transfer
  • Avoid tumble drying, bleaching, soaking or ironing
  • Dry in the shade

Then go have a nap - because laundry is the worst.

Country of Origin: China

What’s My Size

We recommend checking your measurements against our size & fit guide before ordering.

That said, it's a compressive swimsuit, designed to help you feel held and supported (like wearing your favourite activewear)!

ABOUT OUR MODELS:

Lyndi wears Size Small/AU 10/US 6
Height: 165cm (5’5”)
Bust: 93cm (36.6”)
Under bust: 82cm (32.2”)
Waist: 74cm (29.1”)
Hips: 103cm (40.5”)
Bra: AU 12C, UK/US 32C, EU 70C

Laura wears Size Large/AU 14/US 10
Height: 178cm (5’8”)
Bust: 105cm (41.3”)
Waist: 85cm (33.4”)
Hips: 109cm (42.9”)
Bra: AU 16G, UK/US 38G, EU 85I

Delivery & Returns

Swimsuit shopping doesn't have to suck.

We offer free exchanges, 110% of your purchase price as store credit or refunds on all full-price orders.

Click here for the full returns and exchanges policy. And find our shipping info here.

FAQs

Does this top have an underwire?
Yes. The Balconette Top is built around structured underwire that delivers genuine lift and hold - designed for C-D cup women who need real support, not just the illusion of it.

Does it suit a fuller bust?
It's specifically designed for C-D cups. The underwire structure, adjustable under-bust band and foam cups work together to give you lift, shape and hold - not just coverage.

Does it have padding?
Thin foam cups only - enough for modesty and a natural rounded shape, but nothing stiff, bulky or prone to floating. No show-through, no padding that folds.

Does it run true to size?
Yes. Choose your usual size based on our size guide.

What's the coverage like?
The open neckline and cutaway centre-front detail keep it looking chic rather than sporty. Coverage is moderate - it's designed to feel secure and confident, not revealing.

What's the fabric like?
Luxe Crinkle with a 4/5 chlorine resistance rating and brushed gold Fearless hardware. It's a fabric that holds its shape and looks as good at the end of the day as it did at the start.

Are colours true to photos?
Yes. Colours are photographed in natural light, though slight variation can occur depending on screen settings.

Style With

View full details

Fabrication: LuxeCrinkle

  • Texture

    Sculpting crinkle

  • A woman wearing a black blue two-piece bikini stands in front of a swimming pool. The bikini features a structured, bandeau-style top with a small keyhole cutout at the center and high-waisted bottoms.

    Support

    Flexible, comfortable hold

  • Chlorine resistance

    4/5

  • Woman in a black bikini sitting on a rock by a body of water.

    Best for

    Relaxed feel, disguising texture

A beige line-art diagram showing front and back views of a lingerie bodysuit with handwritten callouts and arrows explaining features such as structured underwire, 360-degree power mesh compression, high-rise leg cut, customizable under-bust band, brushed gold hardware, and medium-to-full bon coverage.

We Found a Gap in the Market

Most bikini tops ask you to choose between support and style. The Underwire Balconette Top doesn't. Built with genuine underwire structure, thick-but-feminine straps, and an adjustable under-bust band, it delivers the lift and hold that triangle tops simply can't - without sacrificing the look.



Why You Can Trust Our Sizing

We surveyed 15,000 women before designing a single item and we're still listening.

Every item is fitted and tested on two sizes - a 10/12 (C-Cup) and a 14/16 (E-Cup) - then trialled on real women in their 20s to their 60's. Because no two bodies are the same.

When our fabric ran small, we changed the sizing. Feedback beats data, every time.

Sizes XS-3X. Built for the body you actually have.

Size Guide: International

SIZEXSSMLXL2X3X
AUS8101214161820
US46810121416
UK10121416182022
EU36384042444648

Size Guide: Measurements

SIZEXSSMLXL2X3X
Bust85-9090-9595-100100-105105-110110-116116-122
Underbust72-7777-8282-8787-9292-9797-103103-109
Waist68-7373-7878-8383-8888-9393-9999-105
Hip95-100100-105105-110110-115115-120120-126126-132

Torso Length Guide

Torso Standard - Height below 169cm/67in

Torso Long - Height above 170cm/67in

Still Not Sure?

Finding a swimsuit that actually sculpts, supports and survives the ocean without a wardrobe malfunction? We used to think that was a myth too. Don't take our word for it - real women are already raving about the fit, the comfort and the "wait, this actually works" confidence Fearless delivers.

  • 5 stars: 44 (86%)
  • 4 stars: 5 (10%)
  • 3 stars: 2 (4%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
This product has no reviews of its own. The merchant grouped it with related products, so the reviews shown are from across that group.
J
Jemma (Australia)

I absolutely love all of my fearless swim pieces. This new cornflower colour is so stunning and love that you can wear it strapless as well. This in summer with white linen pants 🫶🏼😘

C
Cboyce (United States)

I absolutely LOVE Fearless! I love a brand that celebrates women in every form and makes us feel beautiful in our skin.
I had one suit and got a second and was just as happy this time around.
I got a Large In Cornflower blue and it’s stunning.
I love how this suit forms to my body as if it’s made just for me.
The only thing I would change is a thicker material so the outline of my girlie parts isn’t super noticeable 😉(but that seems to be my issue with most swimwear)
Everything else is top notch for me.

C
Christie Allen (Australia)

I’m absolutely obsessed with this suit! It fit like a glove, it’s like it was made to my exact measurements! The cups are the best size without gapping or overfilling, the waist is the perfect amount of snatching whilst not digging in at the hips! It’s just *chefs kiss* and most importantly I actually feel so confident in this piece!

G
Georgina Fletcher (Australia)

My fav item I have ordered from Fearless so far. The comfort is incredible. I love that nothing digs in! It also holds in the wobbles from my tummy post twins. I am 160cm tall and have an XL.

G
Georgina Fletcher (Australia)

Fit was good. I wear a 12E bra. I am 160cm tall with a shorter torso.

N
Natty (Australia)

I’m really happy with the Icon Multiway Bikini Top. I’m usually a C/D cup and found it gave great support while still being comfortable and flattering. I have a regular torso length and the fit worked perfectly without feeling too tight or too loose. I chose the size M and it fit true to size. I also love how versatile the multiway design is — the extra set of straps was fabulous for changing up the style and creating different looks. The material feels high quality and stays secure even when swimming.

D
Diane Ford (Australia)

As I'm regularly in the sea, it's important to know my top will stay in place in the surf, as well as provide the right amount of coverage for when I'm lounging around. I'm usually a small 14DD cup, and for the Icon bikini I went for the large size to ensure no overspill. The boning is supportive and comfortable and the cut really is iconic - I feel like a 1950s pin up when I'm wearing this bikini. This is yet another beautiful and comfortable design from Lyndi and the team, and I'm proud to promote it!

D
Diane Ford (Australia)

From purchase to receipt, the process is QUICK!
I also found the website to be very interactive, with the "real life, real woman" experience conveyed beautifully in the product descriptions. Photos of women with different body sizes really helped me understand how the Icon could look, and I just love that Lyndi has created a product and brand that is of such high quality.
Finally, I really love the no BS, straightforward way Lyndi describes the cut and fit of her cossies, using language that makes sense to me!

S
Shan (Australia)

The fit is *chefs kiss*! No other way to describe. So many compliments wearing this top (and bottom) it has the right amount of support for all the mummy bits and just makes you feel like you can enjoy yourself at the beach with your family ♥️

I had a tiny issue with the straps and the customer service team could not have been more helpful and have resolved the issue for me. Thank you Fearless team for giving women the confidence to enjoy themselves in bathers!

J
Jane (Hong Kong)

The ribbed finish is really nice and my belly feels super supportive in these. Thank you!

J
Jane (Hong Kong)

This bikini top is so flattering on the boobs! The clasps taking a bit of a jiggle to get on but once it’s on they feel very supportive

A
Amy (Australia)

The top feels like the absolute most supportive bikini top I’ve ever worn! Covering all the right places without that awkward bunching in areas. It’s the perfect all round fit and I could definitely last all day in it.

S
Samantha (Australia)

The fabric, cut and fit of this is perfection! Holds me in and makes everything nice and smooth but not being restrictive

S
Samantha (Australia)

I love this!
I felt comfortable and supported but still very feminine.

H
Hannah (Australia)

Beautiful bikini top! I love the design and it’s great that it’s still so supportive on top. Love the adjustable straps as well. The contrast with the white straps on black are so nice. Felt very comfortable in it!

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Post as anonymous (Sweden)

I am 165 cm tall and wear a D-cup. This swimsuit is incredibly beautiful and the material is very comfortable. It provides a nice amount of compression without feeling restrictive or unpleasant. Unfortunately, I cannot wear the swimsuit strapless as advertised. There is no way it stays up on my typ of bust; it slides down immediately. However, I like the swimsuit way too much to return it, so I am definitely keeping it! I will just have to wear it with the straps on at all times.

S
Sarah Archer (Australia)

I really wanted to love this, but for me the legs come up a bit too high and it's just not flattering. I love the fabric and the structure to the cups, but I just don't feel as comfortable and confident in it as I would want to :(

D
Dee (New Caledonia)

I really love the cut and design of the icon one piece. I am 159cm, 16D, typically a size 14AU. I purchased the L. It fits comfortably, it was easy to get on. There’s a good support around the tummy, I would say a light-medium support. I probably could have sized down for a firmer fit. If I could change one thing, it would be to have the back strap to be adjustable to allow for a firmer fit/ push up effect around the bust.
Having said that, I love the icon and hope to see it in more colors or in a tankini option.

J
Jamie Oneal (United States)

truly OBSESSED! i wore it at our local swim part with my son and felt confident as a mom walking around in a swimsuit!

A
Alina Kononenko (United States)

Sits so well and even looks good on a small chested girl, which is hard to find. Amazing quality!

S
Sarah (United States)

Have not worn a bikini in year but this one made me feel so confident!! Thank you for creating such a powerful brand.

S
Shan (Australia)

Perfect cut! Modest coverage but not matronly. Nice rise on the tummy and great compressive fit but still comfortable.

I
I.F. (Australia)

In loveee with the Iconc bikini top - it truly makes you feel like an icon!! This is classy, supportive and adjustable bikini. My DD busts feel supported and held - as they should be! If you're looking for swimwear for large busts I highly recommend Fearless!

P
Post as anonymous (Australia)

I have searched for many years for a pair for black high waisted bikini bottoms that suck me in, don’t cut in at the thigh and are just generally flattering. These are it! They’re comfortable, don’t budge and make me feel so confident. I love them!