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  • A woman modeling a black one-piece swimsuit with white trim, standing outdoors in a tropical garden setting.
  • A woman wearing a black one-piece swimsuit with an open back and shoulder straps, standing outdoors on a patio next to a dark blue brick column with green plants in the background.
  • A woman wearing a black one-piece swimsuit with white trim, standing outdoors in front of lush green tropical foliage.
  • A woman modeling a one-piece black swimsuit with a white contrast trim, standing in front of a lush green tropical foliage background.
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  • A woman stands with her back to the camera wearing a dark navy one-piece swimsuit with a cutout back, posed against a lush background of tropical green foliage.
  • Fearless au Braveheart One Piece in Matte Black with white trim - one-piece swimsuit with underwire bust, sweetheart neckline, adjustable straps, tummy compression, shown on a white background
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Braveheart One Piece Swimsuit

$229
$229
Why It's Worth It
Shipping calculated at checkout.

or 4 X $57.25 with

Arriving October 2026.
An underwire one piece swimsuit with cup sizing & tummy control, B-F cups.

Bum coverage:

Bum coverage: Medium-full

Bust Support:

Bust Support: Excellent

Compression:

Compression: Medium

Leg Cut:

Leg Cut: Medium rise

Colour: Matte Black White Trim
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

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Fit

Snug True to size Relaxed

Compression

Low Moderate Maximum

Details

Arriving October 2026.

Meet the underwire one piece swimsuit designed for real support, lift and shaping. With multiple cup fit options, this bra-sized swimsuit enhances your bust, smooths your tummy and keeps everything securely in place - no slips, no stress. Perfect for women seeking supportive swimwear for a larger bust.

• CUP FIT - choose from 2 cup fits: D-DD or E-F for a bra-sized swimsuit fit
• UNDERWIRE SUPPORT - built-in underwire for comfortable, secure lift without digging, larger bust friendly
• NECKLINE - sweetheart neckline with thin foam cups for smooth shaping
• ADJUSTABLE - adjustable back strap plus wide adjustable straps
• TUMMY CONTROL - compression that supports without squeezing
• COVERAGE - mid rise leg, medium-to-full bum coverage, fully lined
• FABRIC - chlorine-resistant ultra-matte recycled swim fabric with contrast binding (chlorine resistance 4/5)
• DESIGN - open back, brushed gold hardware
• STYLING - doubles as a bodysuit beyond the beach

Supportive and built to last - the high support one piece that lets you feel completely secure at the beach, pool, or on holiday.

Shop All One Pieces

Fabric & Care

This swimsuit is crafted from an ultra matte, silky smooth fabric - so flattering you can wear it as a bodysuit too. (Twice the wear from one purchase!)

Outer: 75% recycled nylon, 25% elastane
Lining: 86% polyester, 14% elastane
Power mesh: 72% nylon, 28% elastane

Sustainability isn’t just about recycled materials - it’s about investing in high quality pieces that last for seasons. With the right care, your Fearless swimwear will stay beautiful for years to come.

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

Then treat yourself to a nap - because laundry is a slog.

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 10C, 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

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

Is this swimsuit good for tummy control?
All Fearless Swimwear styles feature built-in 360° power mesh compression designed to smooth, sculpt and support your body.
View full details
A technical line drawing showing front and back views of a compression bodysuit on a female mannequin, with handwritten feature callouts such as built-in underwire support, 360-degree power mesh compression, adjustable back strap, brushed gold hardware, and medium-rise leg cut on a light beige background.

Over Two Years in the Making. Built for You.

For women who've given up finding a swimsuit that actually supports them - this is it. The underwire one piece is built around your bust, not the other way around. Choose from three bra-sized cup fits and let the built-in underwire do what a triangle top never could: lift, hold and shape without digging.

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.

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: 1 (100%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
V
Vicki Foord (Australia)

One of the best swimmers I’ve ever owned! Loved the bum coverage and how comfortable it was to wear the Braveheart One Piece. Absolutely top quality, well done Fearless team x

Vicki Foord review photo