Magic Sizing

A woman with long, wavy dark hair poses barefoot against a light background, wearing a black one-piece swimsuit with a deep V-neck and wide shoulder straps.
A woman with long, wavy hair is smiling and posing in a black one-piece swimsuit against a plain, light-colored background.
A woman with long, reddish-blonde hair poses confidently in a black one-piece swimsuit against a plain, light background. She is standing barefoot with one leg slightly bent and one hand resting on her hip.
A woman with long, wavy dark hair smiles at the camera against a light background. Her hair is parted in the middle and she has a warm, friendly expression.

Size: M

  • Height: 170cm
  • Bust: 91cm
  • Waist: 76cm
  • Hips: 101cm
  • Bra: C cup

Size: L

  • Height: 165cm
  • Bust: 98cm
  • Waist: 77cm
  • Hips: 104cm
  • Bra: D cup
A woman with long, wavy, light brown hair smiles at the camera. She has fair skin, wears natural makeup, and is dressed in a black top against a light, neutral background.

Size: 2X

  • Height: 173cm
  • Bust: 109cm
  • Waist: 93cm
  • Hips: 116cm
  • Bra: E cup
A woman with long wavy hair wears a black one-piece swimsuit and stands against a light beige background, looking over her shoulder toward the camera.
A woman stands barefoot on a light background, facing away and looking back over her shoulder. She is wearing a black one-piece swimsuit with adjustable shoulder straps and has long, wavy, light brown hair.
A woman with long hair smiles while posing in a black one-piece swimsuit with a racerback design, standing against a plain light-colored background.
A woman with long, wavy dark hair smiles at the camera against a light background. Her hair is parted in the middle and she has a warm, friendly expression.

Coverage Size: M

Coverage Size: L

A woman with long, wavy, light brown hair smiles at the camera. She has fair skin, wears natural makeup, and is dressed in a black top against a light, neutral background.

Coverage Size: 2X

A woman models a black one-piece swimsuit. Text points out features: fits A–F cups, comfortable tummy compression, and bust sliders for adjustable coverage. She stands against a plain, light background with arms behind her back.A woman stands on a sandy beach at sunset wearing a black swimsuit. Text reads “Available in Magic Sizing.” Labels point to the swimsuit, indicating it fits as both size M and size L.
A woman models the Fearless au All Day One Piece - Matte Black/Long outdoors, holding a peach and white striped pool float in front of green shrubbery and a wooden fence, with one arm bent behind her head and a relaxed expression.A woman with long wavy hair smiles by a green hedge, wearing the Fearless au All Day One Piece - Matte Black/Long swimsuit and a chunky seashell necklace, lifting her sunglasses and resting one hand on a white chair.A woman in the Fearless au All Day One Piece - Matte Black/Long stands barefoot in a doorway, smiling with a straw hat in hand. She is beside a large potted plant, with a hallway and table visible inside the house behind her.A woman stands outdoors on grass, smiling, wearing Fearless au's All Day One Piece - Matte Black/Long swimsuit with built-in bust support. Trees and greenery are in the background, and she accessorizes with sunglasses.A woman in the Fearless au All Day One Piece - Matte Black/Long stands confidently on marble steps, smiling and adjusting her sunglasses. Lush plants and a wooden door with glass panels are in the background.A woman with long blonde hair stands barefoot outdoors, smiling as she leans against a tree, wearing the Fearless au All Day One Piece - Matte Black/Long swimsuit. Green shrubs and a sidewalk appear in the background.A woman wearing the Fearless au All Day One Piece - Matte Black/Long stands outdoors, arms raised with a patterned scarf, smiling and surrounded by tall green bushes.A smiling woman wearing the Fearless au All Day One Piece - Matte Black/Long with built-in bust support stands outdoors with green foliage behind her, holding a baby in her arms.A smiling woman stands on a stone patio, wearing the Fearless au All Day One Piece - Matte Black/Long swimsuit with layered necklaces. Green bushes and a large planter are in the background.Woman wearing a black supportive bust one-piece swimsuit against a plain backgroundWoman wearing a black supportive bust one-piece swimsuit against a plain backgroundWoman wearing a black supportive bust one-piece swimsuit against a plain backgroundWoman wearing a black supportive bust one-piece swimsuit against a plain backgroundWoman wearing a black supportive bust one-piece swimsuit against a plain backgroundWoman wearing a black supportive bust one-piece swimsuit against a plain backgroundWoman wearing a black supportive bust one-piece swimsuit against a plain backgroundWoman wearing a black supportive bust one-piece swimsuit against a plain backgroundWoman wearing a black supportive bust one-piece swimsuit against a plain backgroundWoman wearing a full coverage, supportive bust black swimsuit in the ocean.Woman in a black one piece swimsuit standing by a body of water with trees in the background.Woman wearing a full coverage, supportive bust black swimsuit in the ocean.Woman in a black postpartum supportive bust swimsuit holding a baby against a green leafy background. A black shapewear garment with adjustable shoulder straps and a high-waisted design. The word FEARLESS is printed in white on the front waistband.Fearless premium luxe smooth fabric in black. Gunmetal hardware and Fearless Logo. Fearless swimwear is designed to withstand ocean swims, pool laps and long summer days - not stretch out after a handful of wears.

Model view

Coverage

Features

Images

  • A woman with wavy dark hair models the Fearless au All Day One Piece in Matte Black/Long, featuring thick shoulder straps, built-in bust support, and a deep V-neckline, against a plain light background.
  • A woman with wavy dark hair models the Fearless au All Day One Piece in Matte Black/Long, featuring thick shoulder straps, built-in bust support, and a deep V-neckline, against a plain light background.
  • Woman wearing a black one-piece swimsuit against a plain background
  • Woman wearing a black one-piece swimsuit against a white background
  • Woman wearing a black swimsuit against a plain background
  • A woman with long red hair smiles confidently in the Fearless au All Day One Piece - Matte Black/Long, featuring a deep V-neckline and built-in bust support, against a light background.
  • Woman wearing a black swimsuit against a plain background
  • Woman wearing a black swimsuit against a plain background
  • Woman in a navy swimsuit standing by water with trees in the background
  • Woman in a black swimsuit standing in water with trees and sunlight in the background
  • Woman wearing a dark blue swimsuit standing in water with a natural background
  • A woman wearing the Fearless au All Day One Piece - Standard in black (size M, long torso) stands outdoors smiling and holding a baby, with greenery in the background.
  • The Fearless au All Day One Piece in Matte Black features a deep V-neck, wide straps, fitted waist for tummy control, smooth fabric, and built-in bust support, shown against a plain white background.
  • The Fearless au All Day One Piece in Matte Black (Standard) is a high-waisted shapewear with tummy control and adjustable straps, featuring a smooth, seamless design, shown on a plain white background.
  • Fearless premium luxe smooth fabric in black. Gunmetal hardware and Fearless Logo. Fearless swimwear is designed to withstand ocean swims, pool laps and long summer days - not stretch out after a handful of wears.
1 15

All Day One Piece Swimsuit

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

or 4 X $49.75 with

Final release. No restocks once sold out.

Colour: Matte Black
Torso Option Standard Torso Long Torso

Find your torso length

Top Size AU 6 / US 2 / EU 34
XS AU 6 / US 2 / EU 34
S AU 8 / US4 / EU 36
M AU 10 / US 6 / EU 38
L AU 12 / US 8 / EU 40
XL AU 14 / US 10 / EU 42
2X AU 16 / US 12 / EU 44
3X AU 18/ US 14 / EU 46
Bottom Size AU 6 / US 2 / EU 34
XS AU 6 / US 2 / EU 34
S AU 8 / US4 / EU 36
M AU 10 / US 6 / EU 38
L AU 12 / US 8 / EU 40
XL AU 14 / US 10 / EU 42
2X AU 16 / US 12 / EU 44
3X AU 18/ US 14 / EU 46

Size Guide


$15 Off Your First Order When You Sign Up*

Bum coverage:

Bum coverage: Medium-Full

Bust Support:

Bust Support: Excellent

Compression:

Compression: Excellent

Leg Cut:

Leg Cut: Medium

Details

Meet the supportive one piece swimsuit that does what others don’t. The All Day One Piece Swimsuit lifts your bust, smooths your tummy and delivers secure medium to full coverage - all with signature Fearless compression to help you feel sculpted, held and confident.

Designed for small and large busts (A-F cups), this flattering one piece combines reliable support, shaping and everyday comfort in one iconic silhouette.

Crafted in our signature Magic Sizing™, you can choose a different top and bottom size for your perfect fit. It’s custom-fit swimwear made simple.

WHY WOMEN LOVE THIS SUPPORTIVE ONE PIECE:

  • Magic Sizing™: choose different top and bottom sizes for a personalised fit
  • Designed to fit A-F cup busts
  • Adjustable bust sliders to customise shape and lift
  • Flattering neckline with a subtle side-bust highlight
  • Elasticated, adjustable straps - wear straight or cross-back
  • 360° power mesh compression for tummy control and sculpting support
  • Medium to full bum coverage
  • Built-in bust support for natural, wire-free lift
  • Timeless silhouette you’ll wear season after season
  • Premium gunmetal hardware
  • Chlorine resistant swimwear - 4/5

Made from ultra matte, ultra flattering recycled swim fabric, this supportive one piece also doubles as a sleek bodysuit - perfect with denim shorts or linen pants for summer styling.

Every Fearless swimsuit is designed for real women and tested on 150+ bodies to ensure comfort, support and a truly flattering fit across sizes.

That’s why she’s so comfortable. So timeless. And why she sells out again and again.

Still thinking about it? This is your sign.
We won’t be bringing this swimsuit back. Once it’s gone, it’s gone.

Shop All One Pieces

Fabric & Care

This swimsuit is crafted from an ultra matte, silky smooth fabric - so sleek you can style it as a bodysuit too. (Double the outfits 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 choosing high quality pieces that last season after season. With the right care, your Fearless swim will go the distance.

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 the worst.

Country of Origin: China

What’s My Size

Click the "What's My Size" button under the size selector for a personalised Fit Quiz!

We worked hard to make our swimsuits fit 'true to size'. If you sometimes wear a bigger size or are between sizes, then size up. That said, it's a compressive swimsuit, designed to help you feel held and supported (like wearing your favourite activewear)!

ABOUT OUR MODELS:

Yaz wears size M - usually wears AU 10
Height: 170cm (5’7”)
Bust: 91cm (36”)
Waist: 76cm (30”)
Hips: 101cm (40”)
Bra: 10C, UK/US 34C, EU 75C

Lyndi wears size L - usually wears AU 12
Height: 165cm (5’5”)
Bust: 98cm (38.5”)
Waist: 77cm (30.3”)
Hips: 104cm (41”)
Bra: 12D, UK/US 36D, EU 80D

Mercy wears size 2X - usually wears AU 16
Height: 173cm (5’8”)
Bust: 109cm (43”)
Waist: 93cm (36.5”)
Hips: 116cm (45.5”)
Bra: 16E, UK/US 38DD, EU 85E

Delivery & Returns

Swimsuit shopping doesn't have to suck.

We know we needed to make returns easy and affordable to spare you *those* awful change room lights - and help you try Fearless without regret or worry.

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

FAQs

Does this suit run true to size?
Yes, this style runs true to size. If you’re between sizes we always recommend going up a size.
Is this suitable for a long torso?
Yes. We offer a Long Torso option in our red, black and blue colours, designed to give extra length through the body without pulling on the shoulders or riding up giving you.
How supportive is the bust?
The All Day One Piece offers medium support with internal structure. This style does have a slight side boob look to it, so keep that in mind!
Is the fabric compressive?
Yes. The fabric is firm, smoothing and supportive - designed to feel like high quality active wear. Comfortable compression.
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.
Is it cheeky or full coverage?
Bum coverage is full and designed to sit on the hip.
Are colours true to photos?
Yes. Colours are photographed in natural light, but slight variation can occur depending on screen settings.
View full details

WIDER HIPS OR BIGGER BUST?

A one piece with a different size top & bottom

Choose separate sizes to fit your bust and hips at the same time. Get a custom fit, without the custom price tag.

Why Women Choose Fearless

Support for Bigger Busts

Support for Bigger Busts

Support for Bigger Busts
Choose Your Coverage

Choose Your Coverage

Choose Your Coverage
Tummy Control Compression

Tummy Control Compression

Tummy Control Compression
Chlorine & Fade Resistant

Chlorine & Fade Resistant

Chlorine & Fade Resistant