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Low Back One Piece Swimsuit

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

or 4 X $57.25 with

Arriving October 2026.
Low scoop back, light bust shaping, medium-to-full coverage.

Bum coverage:

Bum coverage: Medium to Full

Bust Support:

Bust Support: Low

Compression:

Compression: Low

Leg Cut:

Leg Cut: Medium to High

Colour: Black
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

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Fit

Snug True to size Relaxed

Compression

Low Moderate Maximum

Details

Arriving October 2026.

Low back with a high impact. This is the one-piece you wear when you want a little more skin, a little less coverage and absolutely no intention of blending in. The deep scoop back does the flirting, while light compression smooths everything else out. A shelf bra and thin moulded cups give smaller busts (A-D cup) a little shape without trying to turn this into a high-support swimsuit. Basically, it's doing the most in all the right places.

- SUPPORT - ultra-low back makes this a lower-support style, designed for smaller busts (A-D cup) rather than high-support needs
- NECKLINE - scoop neckline with a shelf bra and thin moulded foam cups for light shaping
- ADJUSTABLE - adjustable back straps for a more personalised fit
- TUMMY CONTROL - compression that smooths and supports without squeezing
- COVERAGE - medium leg rise, medium-to-full bum coverage and fully lined
- FABRIC - chlorine-resistant Luxe Crinkle fabric, chlorine resistance 4/5
- HARDWARE - brushed gold Fearless hardware for a polished finish
- STYLING - wears as a one-piece or doubles as a bodysuit beyond the beach
- SIZE RANGE - XS-L (Australian sizes 8-14)

This is the one-piece for when the back is the outfit. Wear it with nothing but sunscreen at the beach, then throw on jeans or a skirt and keep going. It works for swimming, lunch, holidays and whatever happens after.

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 underwire?
No. The scoop neckline is finished with thin foam cups and a shelf bra for light shaping - the low back means less structure through the bust, so this is a lower-support style rather than an underwire one.

What bust sizes does it suit?
Best suited to A-D cup, smaller busts. The scooped back is the whole point of this style, which means it trades some structure for that silhouette.

Is this a high-support style?
No, and we would rather tell you now than have you find out at the beach. The Low Back One Piece is built for a statement silhouette, not maximum hold - if you need higher support through the bust, look for one of our shelf-bra or underwire styles instead (Braveheart lands in the same October drop).

Does it run true to size?
Yes. Choose your usual size based on our size guide. If you're between sizes, size up.

Are the straps adjustable?
Yes. Adjustable back straps let you fine-tune the fit through the shoulders and back.

Can I wear it as a bodysuit?
Yes. The Low Back One Piece doubles as a bodysuit beyond the beach - pair it with jeans or a skirt and that statement back keeps working.

Is it good for tummy control?
Yes. Compression through the midsection supports without squeezing.

What's the coverage like?
Medium leg rise with medium-to-full bum coverage, and fully lined throughout.

What's the fabric like?
Chlorine-resistant Luxe Crinkle - 4/5 resistance rating, so it holds its shape and colour wear after wear.

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

Style With

  • A woman wearing a black one-piece swimsuit with a matching open-front long-sleeve top stands outdoors against a backdrop of white rock formations and a clear blue sky. A woman wearing a black long-sleeve zip-front crop top and matching high-waisted bikini bottoms, standing outdoors against a bright blue sky and pale rock formations.

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    Cropped Rashie with Built-In Bra

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  • A woman modeling a black two-piece bikini with a bandeau-style top and high-waisted bottoms with a side tie, set against a sunny outdoor waterfront background. A woman wearing a black one-piece swimsuit with an open back and adjustable straps, standing on a boat with water and yachts in the background.

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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 with thin shoulder straps and small gold ring details at the top of each strap, shown on a plain white background with curved arrows pointing inward near the waist.

    Support

    3 x more waist cinching

  • Wear to

    Beach, pool, sauna

  • A woman with blonde-highlighted hair wearing a black spaghetti-strap top with gold-tone ring details on the straps, posed against a neutral beige textured background.

    Best for

    Relaxed feel, disguising texture

A beige line-art diagram showing front and back views of a nude body outline wearing a bodysuit, with handwritten text describing product features such as brushed gold hardware, adjustable straps, and chlorine-resistant fabric.

The back does the talking

Cut low enough to get noticed, with adjustable straps and a shelf bra with thin moulded cups for a little shape and lift where it counts.

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.