What is the All Day One Piece Swimsuit?

The All Day One Piece is a Fearless Swimwear one piece designed for all-day comfort and support. It features 360 degree power mesh compression that sculpts the tummy and cinches the waist, wire-free built-in bust support with adjustable sliders for A-F cups, and medium-to-full coverage. It is available with Magic Sizing so you can choose your top and bottom sizes independently. The fabric is ultra-matte luxe recycled swim fabric with a chlorine resistance rating of 4 out of 5, designed to feel like high quality activewear.

What cup sizes does the All Day One Piece support?

The All Day One Piece is designed to support A-F cup busts with wire-free built-in bust support and adjustable bust sliders so you can customise your lift. Customers with larger busts report incredible support both in and out of the water, and the adjustable straps allow you to dial in the fit for your specific proportions rather than settling for a one-size approach.

Does the All Day One Piece have Magic Sizing?

Yes. The All Day One Piece is available with Magic Sizing, which lets you choose different top and bottom sizes in a single swimsuit. This is particularly useful for pear shapes or anyone whose bust and hip measurements fall into different standard sizes. Magic Sizing is available across XS to 3X, covering Australian sizes 6 to 20.

How much compression does the All Day One Piece have?

The All Day One Piece features 360 degree power mesh compression that sculpts the tummy and delivers a held-in, supported feel from all angles. The compression is firm, smoothing and supportive - designed to feel like high quality activewear rather than restrictive swimwear. Customers consistently describe it as compressive yet comfortable, hugging you in all the right places without uncomfortable pressure. This is stronger shaping than the Adventure Suit, which offers medium compression.

What fabric is the All Day One Piece made from?

The All Day One Piece is made from ultra-matte luxe recycled swim fabric with a chlorine resistance rating of 4 out of 5. The fabric is firm, smoothing and supportive with a premium matte finish that customers describe as noticeably elevated compared to typical swimsuit fabrics. Multiple reviewers note the quality is refined enough to wear as a bodysuit with jeans or shorts for everyday wear beyond the beach.

What coverage does the All Day One Piece provide?

The All Day One Piece provides medium-to-full bum coverage designed to sit on the hip. There is a subtle side-bust show to the design. Straps are adjustable and can be worn straight or crossed at the back, giving you flexibility over fit and coverage. The suit is designed to stay in place during surfing, playing with children and active beach days without constant adjustment.

Is the All Day One Piece good for long torsos?

Yes. The All Day One Piece is available in a Long Torso version in red, black and blue, designed to give extra length through the body without pulling at the shoulders or riding up. Long torso styles are tested on the Fearless Fit Crew including women with genuinely long torsos. Magic Sizing is also available in the long torso version so you can address both torso length and size differences between bust and hips simultaneously.

Is the All Day One Piece good for postpartum bodies?

Yes. The All Day One Piece is one of the styles in the Fearless postpartum collection. The 360 degree power mesh compression smooths the tummy and supports post-pregnancy bodies without feeling restrictive. Customers who have had children report the suit delivers the rare experience of finally finding swimwear that actually fits their postpartum body. Magic Sizing also accommodates postpartum bodies where bust and hip proportions have changed after pregnancy.

SIZE	XS	S	M	L	XL	2X	3X
AUS	6	8-10	10-12	12-14	14-16	16-18	18-20
US	2	4-6	6-8	8-10	10-12	12-14	14-16
UK	6	8-10	10-12	12-14	14-16	16-18	18-20
EU	34	36-38	38-40	40-42	42-44	44-46	46-48

SIZE	XS	S	M	L	XL	2X	3X
Bust	84-86.5	86.5-89	89-94	94-99	99-104	104-110	110-117
Hip	89-91.5	91.5-94	94-99	99-104	104-109	109-115	115-122

SIZE	XS	S	M	L	XL	2X	3X
Bust	33-34	34-35	35-37	37-39	39-41	41-43	43-46
Hip	35-36	36-37	37-39	39-41	41-43	43-45	45-48

Shoulder to Crotch	Fit Recommendation	What That Means
Under 76cm / 30"	Standard Torso	Our standard suits should fit beautifully
Over 76cm / 30"	Long Torso	More room + better fit = no wedgies, no tugging

Home > Postpartum > All Day One Piece Swimsuit

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/5’7”
Bust: 91cm/36″
Waist: 76cm/30″
Hips: 101cm/40″
Bra: C cup

Size: L

Height: 165cm/5’5”
Bust: 98cm/39″
Waist: 77cm/30″
Hips: 104cm/41″
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/5’8”
Bust: 109cm/43″
Waist: 93cm/37″
Hips: 116cm/46″
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.

Coverage Size: M

Coverage Size: L

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.

Woman wearing a black swimsuit with text highlighting features on a beige background

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.

Person wearing a black swimsuit with straps by the water

Woman wearing a black supportive bust one-piece swimsuit against a plain 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.

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120 reviews

All Day One Piece Swimsuit

Name: All Day One Piece Swimsuit - Black, Sculpting Support | Fearless
Brand: Fearless Swimwear
SKU: ADOP-MB/SMBX018
Price: 199 AUD
Availability: InStock

120 reviews

Regular price $199

Sale price $199 Regular price

Unit price / per

Why It's Worth It

Shipping calculated at checkout.

or 4 X $49.75 with

A sculpting one piece swimsuit with 360° compression & A-F cup support.

Colour: Matte Black

Torso Option Standard Torso Long Torso

Find your torso length

Top Size US 2 / AU 6 / EU 34

XS US 2 / AU 6 / EU 34

S US 4 / AU 8 / EU 36

M US 6 / AU 10 / EU 38

L US 8 / AU 12 / EU 40

XL US 10 / AU 14 / EU 42

2X US 12 / AU 16 / EU 44

3X US 14 / AU 18/ EU 46

XSVariant sold out or unavailable SVariant sold out or unavailable MVariant sold out or unavailable LVariant sold out or unavailable XLVariant sold out or unavailable 2XVariant sold out or unavailable 3XVariant sold out or unavailable

Bottom Size US 2 / AU 6 / EU 34

XS US 2 / AU 6 / EU 34

S US 4 / AU 8 / EU 36

M US 6 / AU 10 / EU 38

L US 8 / AU 12 / EU 40

XL US 10 / AU 14 / EU 42

2X US 12 / AU 16 / EU 44

3X US 14 / AU 18/ EU 46

Size Guide

$15 Off Your First Order When You Sign Up*

Bum coverage: Medium-Full

Bust Support: Excellent

Compression: Excellent

Leg Cut: Medium

Details

The one piece that works as hard as you do. The 360° power mesh compression sculpts your tummy, lifts your bust (A-F cups, wire-free) and delivers medium-to-full coverage - without the stiff, uncomfortable feel women often expect from high-compression swimwear.

• COMPRESSION - 360° power mesh for tummy control, waist cinching and sculpting support
• BUST SUPPORT - wire-free lift with adjustable sliders, fits A-F cups
• MAGIC SIZING™ - mix top & bottom sizes for a custom-fitting swimsuit
• COVERAGE - medium-to-full bum coverage, subtle side-bust show, wear straps straight or cross-back
• FABRIC - ultra-matte luxe recycled swim fabric, chlorine resistant (4/5 rating)
• COMFORT - supportive sculpting that feels comfortable all day
• MORE INFO - Spotlight Blog: All Day One Piece Swimsuit

A supportive swimsuit to feel your most confident in the body you have today. Because sculpting swimwear should feel good on your body, not uncomfortable.

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

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.

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 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.
Does the All Day One Piece have strong tummy control?
Yes - it features 360° power mesh compression that sculpts the tummy and delivers a held-in, supported feel from all angles.

Is the All Day One Piece suitable for larger busts?
Absolutely. It's designed to support A-F cup busts with wire-free built-in bust support and adjustable bust sliders so you can customise your lift.

What's the difference between the All Day and Adventure One Piece?
The All Day features 360° power mesh compression for stronger shaping and sculpting. The Adventure offers medium compression - great for active days and movement.

Will this swimsuit actually fit my body type?
Based on 35 five-star reviews, this suit delivers the rare experience of finally finding swimwear that actually fits - including customers with long torsos, pear shapes, larger busts, and post-pregnancy bodies who typically struggle with swimsuit fit. The adjustable straps mean you can customise the fit for your unique body rather than settling for a one-size-fits-all approach.

Does it provide enough support without feeling restrictive?
Customers consistently report incredible support for bust, tummy, and post-pregnancy bodies that feels compressive yet comfortable - not restrictive. One customer confirmed support is incredible when dry and wet, and reviewers describe it as “hugging you in all the right places” with the most flattering cut.

Will it stay in place during active beach days?
Yes - reviewers report the All Day suit stays put during surfing, playing with children, and active beach activities without constant adjustment. Customers specifically mention it maintains its position during movement, so you can focus on enjoying your day rather than managing your swimsuit.

Is the quality really worth the investment?
With a perfect 5.0/5 rating across 35 reviews, customers consistently describe this as the best swimsuit they’ve ever invested in. Reviewers highlight the luxurious texture, premium matte fabric, and multi-use value - many wear it as a bodysuit for casual outings, getting multiple garments in one purchase.

What makes the matte black finish special?
The matte black finish combines sophisticated aesthetics with premium fabric quality. It’s refined enough that multiple customers wear it as a bodysuit with jeans or shorts for casual wear beyond the beach, and reviewers consistently describe the material as feeling noticeably elevated compared to typical swimsuit fabrics.

How will I actually feel wearing this?
Customers express overwhelming emotional responses - words like “gorgeous,” “confident,” and “amazing” come up again and again. Reviewers report feeling better than ever before in a swimsuit, with one long-time cover-up wearer who spent decades hiding in shirts and rashies now wearing this suit confidently without layers.

Can I really wear this beyond the beach?
Yes - multiple reviewers confirm the premium quality and design make it versatile enough to double as a bodysuit for everyday wear. Customers report pairing it with jeans, shorts, or casual bottoms for non-beach outings, and one reviewer took hers directly to the sauna and felt gorgeous and comfortable in that setting.

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Person wearing a black swimsuit with a blurred background

Full-length view of Fearless au All Day One Piece in Matte Black - one-piece swimsuit with supportive underwire bust and adjustable straps

Fearless au All Day One Piece in Matte Black: one-piece swimsuit with supportive underwire bust, styled on a model

Close-up of model wearing Fearless au All Day One Piece in Matte Black showing supportive underwire bust

Studio shot: Fearless au All Day One Piece one-piece swimsuit in Matte Black with supportive underwire bust

Woman in the Fearless au All Day One Piece one-piece swimsuit in Matte Black, featuring supportive underwire bust

Model wearing the Fearless au All Day One Piece in Matte Black - one-piece swimsuit with supportive underwire bust

Fearless au All Day One Piece in Matte Black - one-piece swimsuit with supportive underwire bust, adjustable straps, tummy compression, standard torso length, shown on a white background

Rear view of the Fearless au All Day One Piece in Matte Black - one-piece swimsuit showing adjustable back straps, on a white background

Close-up of Fearless au smooth fabric in Matte Black - used in the All Day One Piece, designed to withstand ocean swims and pool laps

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

Cute,
Butt Covered

Cinch &
Support

Chlorine &
Fade Resistant

Customer Reviews

Based on 120 reviews

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91%

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96.9

Lauren

I’ve been hesitant on purchasing because of the price point but I am SO GLAD I did! The fit is wonderful (I ordered based on my measurements) and I feel comfortable and beautiful at the same time. I’m an almost-40 mom of 2 so finding something that checks both boxes is important to me. It’s such a great suit for moms without being a “mom swimsuit”. Can’t wait to wear it this summer!

Donna

Had to send back as was to big. Seamless return.

Post as anonymous

Easy to order, arrived promptly and even caught a sale!

Katie

Swimsuit was so comfortable and fit perfectly. The Royal Blue color is beautiful. I wore it all day on vacation and felt supported all day. I received multiple compliments from other women at the resort :)

Lucy

I can’t actually begin to describe what it feels like to follow a company from its first moments, share the ups and downs via Instagram, wait with baited breath while its owner shows us each sample as it arrives, receive my password to the very first line drop on site, then actually WEAR the swimsuit I’ve always dreamed of.
This label have DARED to challenge an entire industry’s idea of what we SHOULD look and feel like in our swimmers, and I am proud of them even though I’ve never met them! I’m a customer for life now, no going back, ever.

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Coverage, Your Way

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All Day One Piece Swimsuit

Fearless Cap

Fearless Cap

Floral Print Sarong

Floral Print Sarong

A one piece with a different size top & bottom

Why Women Choose Fearless

Customer Reviews