Black one piece swimsuit | The Mentawai - Midnight

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'A timeless black one piece, can be worn from beach to bar, the only black suit you will need.'

Size: XXS

Only 9 left!

- Ships in 24h
Ships next business day
Easy return & exchange
Free worldwide shipping over $250 AUD
12 month Warranty
  • Feel confident in and out of the water with our black one piece swimsuit designed to flatter your shape and will hold you in and accentuate your curves. 
  • Keep your skin protected from the sun's harmful UV rays with the sustainable fabric providing UPF 50+ protection.
  • Ultimate comfort with a silky, soft, luxurious Italian fabric.
  • It will last twice as long as a regular one piece swimsuit, made with durable, sustainable fabric.  Better for you and better for the planet. 

Ooze sophistication and style with our elegant black one piece swimsuit. This women's one piece swimsuit is the epitome of timeless grace and effortless allure, taking you from beach to bar.  Our black one piece swimsuit was made for you with superior quality, functionality, and fit.  The Mentawai in Midnight is the ultimate chic, athletic, black one piece swimsuit. 

We’ve poured our heart and soul into creating the perfect slimming one piece swimsuit that truly flatters all types—years in the making, refined and perfecting every detail—all for you.

Protect your skin from the sun's harmful rays with UPF 50+ protection in the Mentawai one piece swimsuit.

Read more about Econyl, the sustainable fabric we use in all our swimwear.

Twelve month warranty from date of purchase.


Join the movement.  Big love from Bali. 💙

Head to our to find your perfect fit.

Model in first two images is a size 8AU and is wearing a size XS.

Our suits are designed to hold you in, so are a firm fit. The Midnight comes up smaller than all other colours. If in between sizes, go up one size. If you prefer to have a more relaxed feel, go up two sizes.

UPF 50+ protecting your skin from suns harmful rays.
Slimming waist band & panelled design to hold you in, and stay on above and below the water.
Luxuriously soft Italian eco friendly fabric - designed to last twice as long as your regular swimsuit.
Flattering and functional.

To keep your swimwear happy and healthy, please follow our general care guidelines:

Our suits are happiest when hand-washed separately in cool water so the colours do not bleed. Please avoid traditional washers and abrasive materials like velcro and bleach. Do not leave wet swimsuit in a bag. Air dry in a shady spot.


Worldwide shipping from Bali & Australia. Free Shipping for orders $250+.

Regular International parcels take approximately 3 weeks.

Express shipping option available at checkout for $30 AUD.

Please read more of our Shipping Policy here.


We accept exchanges or returns for change of mind, as long as it is processed within 14 days.

Please follow instructions on our Returns page.


We stand by the quality of our swimsuits, they are tailor made with high quality Italian fabric.

We offer a 12 month warranty from date of purchase, shall the make, material or hardware malfunction.

Read more about our warranty here.

Have a question? You can reach us below or on live chat.


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Recycled Materials
UPF 50+ Protection
Luxuriously Soft Fabric
Made With Love

Customer Reviews

Based on 15 reviews
Sarah (Bonnyrigg, GB)
Fantastic suit

This is absolutely the best suit I have ever had. It is totally comfortable and a flattering fantastic design and the fabric is so thick and supportive for sea swimming.
I am thinking about ordering a second one in a different colour!
I am a UK 6 which would be XXS but sized up 2 sizes and ordered a S which fits perfectly
Thank you ❤️

This makes us so happy to hear Sarah - thanks so much for getting in touch and letting us know how happy you are xxx

Alan Ayers (Denver, US)
The Fit!!!

As a personal shopper for Ania, I am constantly on the 'look-out' for perfect fitting swim suits and athletic wear. OMG is this suit not just the best! The overall fit is fantastic and the color and fabric are simply divine. mahalo nui loa you guys 'nailed the perfect landing' on this one!

Thanks so much for sharing Alan! So happy you both love the Mentawai xx

Nat (Melbourne, AU)
The Mentawai - Midnight

I wore my one piece to the ocean yesterday and it was amazing! What I loved about it was the Econyl because it really holds everything in so well!
I have posted pictures on my instagam @not.nat.geo and @reck.lessabandon1810 as I had a butterfly freediving day in the ocean and wore it with my wings. A great combo for a wonderful dive. Thanks Ocean soul it was a great product.

Sabine (Denpasar, ID)
Love this swimsuit

I loooved surfing in this suit!!! It fits so perfectly and it looks so nice too. It stays on so well too when surfing. I’m so happy with this piece. Thank you so much 💘

Ashley Erickson (Minneapolis, US)
Absolutely a must

Love this suit! Perfect fit. I’m so excited to wear to my Mexican surf trip!

Ocean Soul Bali Sustainable Swimwear

The Perfect one piece

Our two piece bikinis are made with a luxurious sustainable buttery soft fabric. 
They are the perfect intersection of sporty and fashionable.  With a comfortable seamless design, both functional and flattering paired with a tailored feminine design that is suitable for leisure or athletic activities.

Designed for comfort

We’ve designed our swimsuits for comfort right down to the smallest detail. The luxuriously soft fabric, double lined, with innovative cupless support and smooth seams will hold you in and support you, with all your water activities.

Ocean Soul Bali Sustainable Swimwear

Sustainable Swim

We value slow fashion over fast with a focus on sustainable fabrics and ethical production. Crafted from regenerated nylon that is designed to last twice as long as your regular swimsuit. Our swimwear is designed & made in Bali with love, with 10% of each sale donated to those in need through our Giving Back initiative.


We line all our snow white surf suits with a beige econyl sustainable fabric, to prevent them from becoming transparent.

Our one piece surf suits do not have built in support. They are double lined and are a firm cut, designed to hold you in. We have customers from a AA-D that are happy with the support with our surf suits.

You can adjust the fit of each surf suit by hitching the leg high up on your hip, which gives you brief coverage. Or pull it down on your hip for more coverage.

If UPF protection is important to you, opt for the darker colours. The Sulawesi in Midnight provides the most UPF block out, due to the dark colour of the fabric and long sleeves.

All our one piece surf suits are designed to be like shape wear and hold you in. If you prefer a more relaxed feel, size up and if buying the midnight go up two sizes, as the black colour doesn't have as much stretch due to the dying process.