"Seriously the best most comfortable swimsuit." - Anna
Color: Midnight Black
"Seriously the best most comfortable swimsuit."
- Anna
Sold out 6 times this summer
* markdown items are exchange only *
Buttery Soft Crinkle Fabric Adapts To Your Shape
Crafted with our signature buttery-soft crinkle fabric, this swimsuit stretches effortlessly and gently contours to your shape, ensuring comfort and confidence all day long. Whether your body is changing with the seasons, a pregnancy or simply time, our suit embraces your silhouette without compromising on style.
🇬🇧 Responsibly made in the UK
🇺🇸 Shipped from the US
🫶 $1 From Every Suit Sold Donated To Women & Babies In Need
- Regular price
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$89.00 USD - Regular price
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- Sale price
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$89.00 USD
Size: One Size – Fits US 2–16
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What Makes It Special
- Magic buttery soft crinkle fabric that adapts to your changing body
- One suit for every chapter: weight changes, new seasons of life and every age
- Easy-release neckline
- Medium coverage for a comfortable, confidence-boosting fit
- Seamless sides comfortably adapt to your changing body
- Thick, quality fabric for great coverage even when stretched out
- Handmade in the UK with premium materials
Fit
- One size comfortably fits US sizes 2–16
- And Cup sizes A–DD
Shipping & Returns
- Standard shipping - 3 to 7 business days
- Priority - 2 to 4 business days
- Your delivery date shown at checkout
- We offer a perfect fit guarantee - love it or return it within 14 days for a refund - no questions asked
Sustainability & Ethics
We believe in slow fashion that's better for you and the planet.
All our swimsuits are handmade in small batches.
We manufacture in the UK to ensure ethical practices, premium materials and an amazing quality suit you can feel great in and about!
Fast Delivery
Perfect Fit Guarantee
Handmade in the UK
What Makes It Special
- Magic buttery soft crinkle fabric that adapts to your changing body
- One suit for every chapter: weight changes, new seasons of life and every age
- Easy-release neckline
- Medium coverage for a comfortable, confidence-boosting fit
- Seamless sides comfortably adapt to your changing body
- Thick, quality fabric for great coverage even when stretched out
- Handmade in the UK with premium materials
FIT
- One size comfortably fits US sizes 2–16
- And Cup sizes A–DD
SHIPPING & RETURNS
- Standard shipping - 3 to 7 business days
- Priority - 2 to 4 business days
- Your delivery date shown at checkout
- We offer a perfect fit guarantee - love it or return it within 14 days for a refund - no questions asked
SUSTAINABILITY & ETHICS
We believe in slow fashion that's better for you and the planet.
All our swimsuits are handmade in small batches.
We manufacture in the UK to ensure ethical practices, premium materials and an amazing quality suit you can feel great in and about!
Delivery
Guarantee
in the UK
"Seriously the best most comfortable swimsuit. I have it in two colors now and the only swimsuits I wear!"
Sarah M. - Verified Buyer
As Featured In
"Finally a swimsuit that actually fits. The one-size concept sounded crazy but it works."
Jessica R. - Verified Buyer
As Featured In
"Seriously the best most comfortable swimsuit. I have it in two colors now and the only swimsuits I wear!"
Sarah M. - Verified Buyer
"Finally a swimsuit that actually fits. The one-size concept sounded crazy but it works."
Jessica R. - Verified Buyer
Your Body Changes.
Your Swimsuit
Shouldn't Have To.
Most crinkle swimsuits stretch out, lose shape, or leave you adjusting all day. Ours doesn't. We engineered our one-size fabric for real bust support, full coverage, and a fit that adapts to your body – not the other way around. Hit play to see exactly how it works.
One swimsuit. Every stage. Yours to keep.
One swimsuit, worn at every stage
See how one suit works through every change: weight, age and every season of life.
Perfect for everyday wear with a flattering, comfortable fit that celebrates your natural shape.
Four-way stretch makes room for a bump or a new postpartum shape, then settles back afterwards.
Supportive through the bust and forgiving through the middle, whatever your age or shape.
Why Women Love Our One Size Crinkle Swimsuit
Designed to solve the common frustrations of sized swimwear
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Stylish & Practical
Want stylish, practical swimwear that works whatever your body is doing this year
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No More Squeezing
Don't want to squeeze into conventional sizes or settle for frumpy suits
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Safe & Easy To Wear
No harsh chemicals, with an easy-release neckline and adjustable straps
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Comfortable & Confident
Want to feel comfortable and confident in a swimsuit that celebrates your growing and changing body
Real Women, Real Confidence
One swimsuit,
worn at every stage.
Designed with unique four-way stretch fabric to adapt flawlessly to your changing body.
Real Women. Real Confidence.
Your Perfect Fit - Personally Guaranteed
We're a small, women-owned business - and every single suit is ethically handmade in the UK in small batches with the highest quality checks at every stage.
Our magical four-way stretch fabric moulds to your body and comfortably fits US sizes 2–16. We're so confident you'll love it that I personally back every suit we make.
If it doesn't fit perfectly, simply send it back within 14 days and we'll refund you - no questions asked.
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Fast Delivery
-
Perfect Fit Guarantee
-
Handmade in the UK
Your Perfect Fit - Personally Guaranteed
We're a small, women-owned business - and every single suit is ethically handmade in the UK in small batches with the highest quality checks at every stage.
Our magical four-way stretch fabric moulds to your body and comfortably fits US sizes 2-16. We're so confident you'll love it that I personally back every suit we make.
If it doesn't fit perfectly, simply send it back within 14 days and we'll refund you - no questions asked.
Frequently Asked Questions
1. Is it really one size?
Our 'One Size Fits Most' method is suitable for a US 2 - 16, depending on desired fit.
The material stretches as your body changes, whether that's weight, age or a baby bump, and returns to your desired shape afterwards.
2. How do I care for my swimsuit?
With the right care, your swimsuit will be your go-to for seasons to come.
Follow these instructions so your suit can continue to feel as good as you do wearing it.
How to avoid any damage or premature wear
- Do not twist or wring, which will overstretch the (already stretchy) fibres of the suit
- Avoid contact with sunscreen, lotions, oils, or bleach. We’d suggest applying suncream, lotions or oils once your suit is on and work your way around it
- Avoid spas or hot tubs
- Do not dry clean, tumble dry, or store when wet.
If you do want to wash your suit, here's how:
- Hand wash in cool, fresh water immediately after use
- A small amount of diluted, mild detergent may be used
- Bunch swimsuit into a ball and squeeze to remove excess water
- Lie in the shade or hang to dry
Don't worry, we'll send these instructions with your swimsuit too.
3. Shipping & returns
We ship domestically from our US warehouse using premium shipping providers. Choose your speed at checkout: Standard $9.00, 3 to 7 business days; Priority $15.00, 2 to 4 business days. Order by 3 PM ET for same-day dispatch on Priority. Your delivery date is shown at checkout. Orders are tracked, and you'll receive tracking details once your order is fulfilled.
We accept returns within 14 days of delivery. A $9.95 return shipping fee is deducted from your refund to cover the cost of your return label - exchanges are always free.
To start a return, visit our Shipping & Returns page or email hello@marisnsol.com with your order number. Please allow up to 24 hours for your request to be processed.
Full returns policy on our Shipping & Returns page
4. Will it fit my long torso?
It’s likely! It’s seriously flexible - in all directions.
Many people around 6ft tall wear our one-pieces and find the fit to be super comfortable.
5. What about bust support?
Our suits don't include any built-in bust support, as this would limit their special ability to adapt to your changing body.
The super-flexible, seamless fabric adapts to fit your body and will lightly hug your shape in ways a typical swimsuit wouldn't - but this kind of support will come down to personal preference.
Our one-size swimsuit comfortable accommodates cup sizes A–DD
Pink Sugar Color: While the suit offers excellent coverage, for extra peace of mind, if you have a large bust or darker areola, we recommend using silicone swimming nipple covers.
6. What is the fabric composition?
Our swimsuits are responsibly handmade in the UK.
The fabric is made of 95% Nylon and 5% Elastane
Pink Sugar Color: While the suit offers excellent coverage, for extra peace of mind, if you have a large bust or darker areola, we recommend using silicone swimming nipple covers.