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Rounded Square Neck One Piece Swimsuit

Regular price $199
Sale price $199 Regular price
Why It's Worth It
Shipping calculated at checkout.

or 4 X $49.75 with

Shipping 16 September 2026.
A square neck one piece swimsuit with 360° compression, removable moulded cups (A-F) and a high-cut leg designed to wear at the pool or styled as a bodysuit.

Bum coverage:

Bum coverage: Medium

Bust Support:

Bust Support: Medium

Compression:

Compression: Medium

Leg Cut:

Leg Cut: High

Colour: Chocolate Brown
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

Shipping 16 September 2026. Pre-order styles can be returned for a refund, exchange or credit note.

A swimsuit, a bodysuit and a wardrobe staple in one. The Rounded Square Neck One Piece combines sculpting compression with a high-cut leg and the kind of versatility that earns it a permanent spot in your rotation - from the pool to wherever the day takes you.

SQUARE NECKLINE - modern rounded square neckline with wider straps for comfort and support
BUST SUPPORT - built-in shelf bra with removable moulded cups, suitable for A-F cup busts
COMPRESSION - 360° power mesh through the midsection with no-dig design for a smooth, sculpted silhouette
VERSATILE DESIGN - wear as a swimsuit at the beach or pool, or styled as a bodysuit
FABRIC - Matte Luxe Jacquard Rib, fully lined (chlorine resistance 4/5)

The one piece that doesn't have to choose between the pool and your wardrobe.

Shop All One Pieces

Fabric & Care

This swimsuit is crafted from our Matte Luxe Jacquard Rib - a textured, supportive fabric with a refined matte finish.

This swimsuit is crafted from our Matte Luxe Jacquard Rib - a textured, supportive fabric with a refined matte finish. Fully lined and built to hold its shape in and out of the water.

Outer:90% recycled polyester, 10% spandex
Lining: 86% polyester, 14% elastane
Power mesh: 72% nylon, 28% elastane

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:
  • Cold hand wash only - this fabric is delicate
  • Rinse immediately after exposure to chlorine or spa water
  • Do not soak, iron or tumble dry
  • 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 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

Does this have an underwire?

Does this have an underwire?
No. The Rounded Square Neck One Piece is wire-free with a built-in shelf bra and removable moulded cups for support and shape - no underwire needed.

What bust sizes does it suit?
Designed for A-F cup busts. The shelf bra and removable moulded cups provide support and coverage across a wider bust range than most one pieces.

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

Can I wear it as a bodysuit?
Yes. The Rounded Square Neck One Piece is designed to work as both swimwear and a bodysuit - pair it with jeans, linen pants or a skirt and it looks intentional, not like you forgot to change.

How does the compression feel?
Supportive, not restrictive. The 360° power mesh through the midsection gives you a smooth, sculpted feel that's comfortable enough to wear all day - firm but never tight or uncomfortable.

Is it good for tummy control?
Yes. The 360° power mesh compression smooths and sculpts through the midsection with a no-dig design - no rolling down, no digging in.

What's the coverage like?
High-cut leg with medium bum coverage. The square neckline sits modern and structured - confident without being revealing.

What's the fabric like?
Matte Luxe Jacquard Rib - thick, textured and fully lined with a 4/5 chlorine resistance rating. Holds its shape in and out of the water.

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: Matte Luxe Jacquard Rib

  • A close-up of dark brown ribbed fabric with vertical stitched stripes and a textured woven surface.

    Texture

    Three-dimensional matte finish

  • Support

    3 x more waist cinching

  • A woman wearing a dark brown ribbed one-piece swimsuit, posing with her arms raised against a background of lush green tropical leaves.

    Wear to

    Beach, pool, sauna

  • A woman modeling a ribbed brown one-piece swimsuit standing by a swimming pool with a dense green bamboo wall background.

    Best for

    Postpartum, bigger bust, tummy conscious

A technical line drawing showing the front and back views of a bodysuit on a body form, with handwritten feature callouts around the figure. This is not a clean product photo and functions as an explanatory diagram, so subject_type is Instruction Diagram rather than Product/Packaging.

Not just a swimsuit

The Rounded Square Neck One Piece is three things at once: a swimsuit, a bodysuit, and a piece you'll reach for on repeat. A modern square neckline with wider straps.

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: 62 (85%)
  • 4 stars: 7 (10%)
  • 3 stars: 3 (4%)
  • 2 stars: 1 (1%)
  • 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.
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Georgina Fletcher (Australia)

Such a stunning piece. Very comfortable with great bum coverage. Really love the fabric. Like that it has some padding inside the bra area to reduce nipple exposure. I’m 160cm tall with magic sizing in L on top and XL on bottom. Only tiny snag is I’m a bit short for it so would have loved some adjustable straps to make it a little more secure in the boob.

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Erin (United States)

Overall I like this alot. I have a larger midsection in comparison to my body size and have bought other styles of one piece swimsuits from other brands that really pull in right at the waist circumference, but nothing like this where the shaping goes down the front all the way. Its extremely flattering and not uncomfortable at all. I personally didnt have to shimmy into the suit which makes me wonder if I should have sized down, but I think that would have been too tight in the abdomen area. The chest area is actually a bit looser/less supportive than I expected, especially with the rise of the chest area being a bit higher than I typically prefer (as pictired/expected). I am 5'4", 145-150lbs, 39.5/31/41, 36DD, and purchased size large regular torso. I usually have to get long torso from other brands to accommodate the volume of my chest and stomach better, and still then I feel like the suit is stretched and not flattering curves. This isn't an issue with this suit. I probably wont get it into water for another couple of months but have high hopes.

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Adele (New Zealand)

Fantastic

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Bailey Robertson (Australia)

I cannot BELIEVE I can order a one piece with different sizing for top and bottom! Having always been a pear shape, the Adventure suit fits my smaller bust perfectly (size 10 top, size 12 bottom). The material is so buttery and soft with no digging in, and the back cut is so flattering. Really looking forward to doing more laps this summer!

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I.M. (Australia)

The fabric is stunning !!! Good quality feel, love the all over ribbing and the removable padding. Wearing the suit makes me feel secure, confident, comfortable and sexy ! Thank you :)

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Christina (United States)

Love how snug this suit is and I don't feel like anything is going to fall out. I'm a 34DDD (14E) and I bought a L/XL and it supports my chest well without cutting in giving double boobs. I'm wondering if I needed a different size or long torso because the straps in the back dig in right under my shoulder blades. Hoping over time it stretches out a bit and the back will fit differently. Overall it fits well enough that I didn't want to deal with the hassle of returning for a different size (live in the States). Plan to buy other suits from you guys!

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Vicki Foord (Australia)

Just tried on my new red Adventure Suit and I’m ABSOLUTELY IN LOVE 😍 Wow - this brand truly lives up to its name. The fit is perfection: supportive in all the right places, flattering from every angle, and designed with real women in mind.

What I love most is how inclusive Fearless is. Their designs celebrate every shape and size, and you can genuinely feel that when you put them on. Instead of trying to squeeze yourself into a swimsuit, Fearless makes the swimsuit work for you.

The red colour is stunning — bold, confident, and exactly the kind of energy I want for summer. I’ve honestly never felt this comfortable and empowered in swimwear before.

If you’re looking for swimmers that make you feel incredible while fitting beautifully, Fearless is the brand to choose ❤️🏖️✨

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Kristi-Lee Drew (Australia)

My inverted triangle girlies need to RUN not walk and grab the adventure suit. So compressive (important after 3 kids), high quality material, flattering, perfect bum coverage, doesn’t ride up. I’ve never worn a swimsuit I’ve felt so comfortable and confident in. Sizing is perfect - I’m 167cm, 65kgs, size 10-12 and wear the medium. Will definitely be back for more FEARLESS.

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Natasha (Australia)

Beautiful colour, great coverage, so comfortable and very supportive. Absolutely love it!

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Deanna (New Zealand)

Wow, just love this suit! The contrast of the white and black is stunning and the neck line so flattering. The fabric is beautiful and soft but also so supportive. Just the right amount of coverage and giving all the confidence to feel comfortable, knowing you’re all held together in a gorgeous swimsuit. Definitely a favourite!

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Post as anonymous (United States)

Love everything about this suit and can’t wait to order more!

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Post as anonymous (Australia)

As a postpartum mom I had stopped looking at my body the same way. Swimsuits? Not for me. Not until I discovered fearless swimwear. The way it snatches you up is unreal. I’m so happy I got this because this made me feel so confident and good about my body. So glad this brand exists!

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Alina Kononenko (United States)

So flattering! the way it snatches you in is amazing! love this swim suit!

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Post as anonymous (Australia)

I used the fit guide from the website to decide on my size. I was advised to purchase a med top & med bottom. The fit was perfect. The bathers hold you in all the right places but you do not feel squished or uncomfortable. The fabric is thick and quality of the finish is excellent. The best bathers I have ever purchased.

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Lauren (United States)

This suit is fantastic! I had originally ordered a large when it was on sale and it didn’t fit right, customer service worked with me,(even with it being on sale), to help me find the size that fit me best. I sized up and got the long torso and it feels amazing! It’s ver flattering without being uncomfortable. I have another compression suit from TA3 that is very sexy and flattering but super compressive and not comfortable in all day (nor do I wear it around family lol). Excited to have a flattering one piece for all occasions!

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Post as anonymous

I love the fit and the fabric of this swimsuit! It’s supportive but not so compressive that I’m dying to get out of it, and it’s sexy but not something I feel like I’m going to fall out of. I can’t think of a scenario where it wouldn’t be the perfect swimsuit!

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Post as anonymous (New Zealand)

Flattering style, lovely fabric, good tummy control support, supportive around the bust, they have though of everything that I would want in swimwear. It seems to be smaller sizing, I did order the long torso style but it still felt a little short in the length for me, I am going to try a bigger size and I am hoping this fits me perfectly.

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Post as anonymous (Australia)

Couldn’t be happier… look forward to buying my second Fearless

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Sarah (Australia)

fantastic customer service

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Wendy (Australia)

Fearless are wonderful to deal with, even though the swimwear weren't exactly as I had hoped they tried to help me solve the problem.

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Louise

Love! Finally i buy a swimsuit that i just put on and feel comfortable. Looking forward to wearing it more. Will even use it as a body suit! Thank you Fearless for making such well fitting bathers!

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Lyndell (Australia)

Love this suit, I bought the black and white when Fearless was first released. It fits beautifully, hold everything in without strangling me.

Unfortunately the white straps have turned a dirty dark grey colour. I will buy fearless again, as the fit us perfect, but next time I'll stick with a block colour.

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Post as anonymous (Australia)

The most amazing swimmers I’ve ever worn! So comfortable in all the right places. Will be back for more!!

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Cass (Australia)

Obsessed! At first I wasn’t sure if these suits were my style but after trying them on I wanted to go throw out every other bikini I own. The main thing that surprised me was how comfortable I felt with the compression. It’s firm but there’s no overhang or bits squishing out, no cutting in or side boob. Actually feel like a queen in it and never been so confident in a bikini, especially after having my twins

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Katrina (Australia)

I find buying one piece suits hard due to a long torso. It is difficult to find suits that cater for this. I had been deliberating over buying a fearless long torso suit for many months and finally took the plunge. I do not regret it one bit. It fits perfectly and the fabric is beautiful. It is the best swim suit I’ve ever owned and makes me feel confident wearing it. Also, I got the best advice from the AI chat function that gave detailed information about why I should choose one size over another. Amazing!