• A woman modeling a black one-piece swimsuit on a boat deck next to a white sailboat, with trees and water in the background.
  • A woman viewed from behind wearing a black one-piece swimsuit with an open back and adjustable straps, standing outdoors near a dock or boat area.
  • A woman modeling a black one-piece shapewear bodysuit with underwire cups and wide shoulder straps, posed against a neutral beige textured background.
  • A woman modeling a black one-piece swimsuit against a textured beige studio backdrop.
  • A woman modeling a black one-piece swimsuit with an open back and shoulder straps, photographed against a textured beige studio backdrop.
  • Close-up back view of a person wearing a black one-piece bodysuit or shapewear garment with adjustable shoulder straps, a central waist strap, and a large open back cutout, against a plain beige background.
  • A woman modeling a black one-piece swimsuit with a keyhole cutout at the bust, styled with an oversized cream coat, sunglasses, and a black net bag against a beige textured background.
  • A woman modeling a black one-piece swimsuit with a sweetheart neckline and shoulder cutouts, standing against a textured beige studio backdrop and holding a small black-and-white patterned handbag.
  • A woman wearing a black one-piece swimsuit is shown from behind, standing against a textured beige studio backdrop with her arms raised overhead.
1 9

Balconette One Piece Swimsuit

$249
$249
Why It's Worth It
Shipping calculated at checkout.

or 4 X $62.25 with

Balconette underwire one piece with tummy compression and open back.

Bum coverage:

Bum coverage: Medium

Bust Support:

Bust Support: High

Compression:

Compression: Medium

Leg Cut:

Leg Cut: Medium to High

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

Free shipping over $200 | Estimated delivery: Oct 29 – Nov 3

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Fit

Snug True to size Relaxed

Compression

Low Moderate Maximum

Details

Love the shape of our balconette bikini but want the confidence of a one piece? Meet the best of both. Built-in underwire lifts, separates and supports B-D cups, while adjustable straps and a 6-channel underbust slider let you decide on the fit. Thin foam cups give you a smooth, natural shape with no show-through, while the cutaway centre front and open neckline bring just the right amount of skin.

Comfortable compression through the midsection keeps you feeling held and secure, while the open back keeps the whole thing feeling anything but covered up. Wear her in the water, then throw on linen pants and call it an outfit.

• UNDERWIRE SUPPORT - built-in underwire provides lift, separation and support for B-D cups
• ADJUSTABLE FIT - 6-channel adjustable underbust slider lets you customise the fit and support
• STRAPS - thick, fully adjustable straps for comfortable, secure support
• FOAM CUPS - thin built-in cups give natural shape and coverage without bulky padding
• COVERAGE - open neckline and cutaway centre front balanced with secure one-piece coverage
• COMPRESSION - comfortable support through the midsection without restricting
• BACK - open back design that's easy to get in and out of
• HARDWARE - brushed gold Fearless hardware
• FABRIC - Luxe Crinkle with chlorine resistance 4/5
• STYLING - doubles as a bodysuit with your favourite pants, shorts or skirt
• SIZE RANGE - XS-3X (Australian sizes 8-20)

Shop All One Pieces

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. Good news is we do offer exchanges and refunds if the size isn’t spot on.

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”)
Cup: C

Shima wears Size Small/AU 10/US 6
Height: 171cm (5’6”)
Cup: B

Liz wears Size Small/AU 10/US 6
Height: 178cm (5’8”)
Cup: D

Alana wears Size Large/AU 14/US 10
Height: 173cm (5’6”)
Cup: DD

Laura wears Size Large/AU 14/US 10
Height: 178cm (5’8”)
Cup: G

Jessie wears Size 2X/AU 18/US 14
Height: 171cm (5’6”)
Cup: F

Delivery & Returns

Standard and express shipping available depending on your region.

Easy returns: 14 day money back guarantee on all full price orders. We offer exchanges, 110% of your purchase price as store credit or refunds on all full-price orders.

Click here for our full returns policy and all shipping info.

FAQs

Does this have an underwire?
Yes. The built-in underwire lifts, separates and supports B-D cups.

What bust sizes does it suit?
Designed for B-D cup busts. The underwire and thin foam cups give lift, shape and support across that range.

Can I adjust the fit?
Yes, in two ways. The thick straps are fully adjustable, and the 6-channel underbust slider lets you customise the fit and support through the band.

Are the cups padded?
Thin built-in foam cups give a smooth, natural shape with no show-through, without the bulk of heavy padding.

How does the compression feel?
Supportive, not restrictive. The comfortable compression through the midsection keeps you feeling held and secure without being tight.

What's the coverage like?
Balanced. The open neckline, cutaway centre front and open back bring just the right amount of skin, while the one-piece shape keeps everything secure.

Is it easy to get on and off?
Yes. The open back design makes it easy to get in and out of.

How is it different from a balconette bikini?
It has the same balconette shape, with the added confidence and midsection support of a one piece.

What's the fabric like?
Luxe Crinkle with a 4/5 chlorine resistance rating.

Can I wear it out of the water?
Yes. It doubles as a bodysuit with your favourite pants, shorts or skirt. Linen pants are our pick.

What size range does it come in?
XS-3X (Australian sizes 8-20).

Style With

  • A woman modeling a black halter-neck maxi dress with side pockets and a large silver circular belt accent, standing against a textured beige studio backdrop. A woman wearing a sleeveless black maxi dress, shown from behind with her arms raised overhead, standing against a textured beige studio backdrop.

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  • A woman modeling a black tank and skirt with a hidden shorts, holding out the side drape of the skirt against a textured beige studio backdrop. A woman modeling a black tank and skirt with a hidden shorts, holding out the side drape of the skirt against a textured beige studio backdrop.

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View full details

Fabrication: LuxeCrinkle

  • A close-up texture shot of a black fabric or material surface.

    Texture

    Sculpting crinkle

  • A black one-piece bodysuit or swimsuit with wide shoulder straps and a small cutout at the bust, shown on a plain white background with curved arrows pointing inward near the sides.

    Benefits

    3 x more waist cinching

  • A woman modeling a black one-piece swimsuit on a boat deck next to a white sailboat, with trees and water in the background.

    Wear to

    Beach, pool, sauna

  • A woman modeling a black one-piece swimsuit with a sweetheart neckline and shoulder cutouts, standing against a textured beige studio backdrop and holding a small black-and-white patterned handbag.

    Best for

    Relaxed feel, disguising texture

A technical line drawing showing front and back views of a compression bodysuit on a beige background, with handwritten feature callouts such as built-in underwire support, thin built-in cups, medium-high leg line, thick fully adjustable straps, open back, and seo degree power mesh for comfortable compression.

Look hot, feel held

Lifted, held and ready for compliments. The underwire does the heavy lifting, while the open neckline and back make sure this is anything but your basic one piece.

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.

As Seen On

  • Balconette

    Alana wears size L, DD cup, 173cm

  • Balconette one piece

    Liz wears size S, D cup, 178cm

  • Balconette one piece

    Alana wears size L, DD cup, 173cm

  • Balconette one piece

    Shima wears size S, B cup, 171cm

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.