Such a lovely dress. It’s light, comfortable and the fit is really flattering. I wore it out for lunch with friends and had so many compliments.
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ISLA WELLINGTON · Clothing > Swimwear > Tankini Sets > Adjustable > Women's
Marevia – Tankini Swimsuit Set with Adjustable Sides
$78.00
$156.00
50% OFF
Fit
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See the product description, materials and care details for product-specific information.
The tankini you can finally relax in.
You know that moment by the pool.
You tug. You smooth. You wrap a towel back around.
This tankini set has drawstring sides that gather softly around your middle, so the tank stays put and your tummy stays covered — even when you sit, swim, or chase the kids.
The boy-shorts cover what bikini bottoms don't.
The crisscross V-neck looks modern, not matronly.
Slip it on, walk down to the water, and stay there.
A returning summer favorite, year after year.
✓ Stop tugging at your swimsuit all day
The adjustable side drawstrings gather the fabric softly around your tummy, so the top stays put when you sit, bend, or swim. No more constant adjusting.
✓ Boy-shorts that stay where they belong
Full-coverage boy-shorts give you more skin coverage than bikini bottoms — no riding up between the thighs during swimming, walking, or beach volleyball.
✓ A V-neck that looks modern, not matronly
The crisscross strap detail at the V-neck draws the eye up, frames the décolletage, and gives this tankini a fashion-forward edge most modest swimwear misses.
✓ Moves with you, dries in minutes
The polyester-spandex blend stretches with every movement and dries quickly so you're not sitting in a heavy, wet suit all afternoon.
What you get today
- The Marevia tankini set (matching tank top + boy-shorts)
- Adjustable drawstring sides for custom tummy coverage
- Available in 6 colors, sizes S–2XL
- Free tracked shipping
- 30-day money-back guarantee
Seasonal swim run — once this batch sells out, restock pricing may change.
Get yours today and feel covered, supported, and back in the vacation photos — while this season's run lasts.
30-day at-home trial
Try the Marevia tankini at home for 30 days. If it doesn't fit, look right, or wear the way you expected, return it for a full refund.
Frequently asked questions
Are the side drawstrings actually functional?
Yes. Pull them tighter for more ruching and tummy coverage, or loosen them for a relaxed drape. They tie at the side hip.
Is the fabric see-through when wet?
No. The polyester-spandex blend is fully lined and stays opaque in the water.
Do the boy-shorts have a built-in liner?
Yes, the boy-shorts are lined for comfort and discretion.
Can I wear the tank top separately as a regular top?
Most customers wear it strictly as swimwear since the cut and fabric are designed for the water, but it works as a beach cover-up over bikini bottoms too.
Specifications
- Top: V-neck tank with crisscross strap detail and adjustable side drawstrings
- Bottoms: Full-coverage boy-shorts
- Material: Polyester + spandex blend
- Sizes: S, M, L, XL, 2XL
- Colors: 6 options
How to wash
- Hand wash cold with mild soap after each wear
- Rinse out chlorine or salt water immediately
- Lay flat to dry
- Do not bleach. Do not tumble dry
Eligible change-of-mind returns can be requested within 30 days of receiving your order. Conditions apply and return instructions must be requested before sending an item back.
PRODUCT DETAILS
DESIGNED FOR EVERYDAY WEAR
The tankini you can finally relax in.
You know that moment by the pool.
You tug. You smooth. You wrap a towel back around.
This tankini set has drawstring sides that gather softly around your middle, so the tank stays put and your tummy stays covered — even when you sit, swim, or chase the kids.
The boy-shorts cover what bikini bottoms don't.
The crisscross V-neck looks modern, not matronly.
Slip it on, walk down to the water, and stay there.
A returning summer favorite, year after year.
✓ Stop tugging at your swimsuit all day
The adjustable side drawstrings gather the fabric softly around your tummy, so the top stays put when you sit, bend, or swim. No more constant adjusting.
✓ Boy-shorts that stay where they belong
Full-coverage boy-shorts give you more skin coverage than bikini bottoms — no riding up between the thighs during swimming, walking, or beach volleyball.
✓ A V-neck that looks modern, not matronly
The crisscross strap detail at the V-neck draws the eye up, frames the décolletage, and gives this tankini a fashion-forward edge most modest swimwear misses.
✓ Moves with you, dries in minutes
The polyester-spandex blend stretches with every movement and dries quickly so you're not sitting in a heavy, wet suit all afternoon.
What you get today
- The Marevia tankini set (matching tank top + boy-shorts)
- Adjustable drawstring sides for custom tummy coverage
- Available in 6 colors, sizes S–2XL
- Free tracked shipping
- 30-day money-back guarantee
Seasonal swim run — once this batch sells out, restock pricing may change.
Get yours today and feel covered, supported, and back in the vacation photos — while this season's run lasts.
30-day at-home trial
Try the Marevia tankini at home for 30 days. If it doesn't fit, look right, or wear the way you expected, return it for a full refund.
Frequently asked questions
Are the side drawstrings actually functional?
Yes. Pull them tighter for more ruching and tummy coverage, or loosen them for a relaxed drape. They tie at the side hip.
Is the fabric see-through when wet?
No. The polyester-spandex blend is fully lined and stays opaque in the water.
Do the boy-shorts have a built-in liner?
Yes, the boy-shorts are lined for comfort and discretion.
Can I wear the tank top separately as a regular top?
Most customers wear it strictly as swimwear since the cut and fabric are designed for the water, but it works as a beach cover-up over bikini bottoms too.
Specifications
- Top: V-neck tank with crisscross strap detail and adjustable side drawstrings
- Bottoms: Full-coverage boy-shorts
- Material: Polyester + spandex blend
- Sizes: S, M, L, XL, 2XL
- Colors: 6 options
How to wash
- Hand wash cold with mild soap after each wear
- Rinse out chlorine or salt water immediately
- Lay flat to dry
- Do not bleach. Do not tumble dry
VERIFIED CUSTOMER FEEDBACK
WHAT OUR CUSTOMERS ARE SAYING
4.8
/ 5
6,857
REVIEWS
96%
RECOMMEND
I was unsure about ordering online, but the sizing was spot on. Really pleased with how it looks.
Love the burgundy colour. The cut is very flattering and it stayed comfortable all evening.
The dress fits beautifully and feels really comfortable. The fabric is softer than I expected.
I love how this dress falls. It’s roomy without looking oversized and feels lovely and light on.
This suit fits beautifully. The trousers sit really nicely and the blazer makes the whole outfit look very polished.
The dress fits beautifully and feels really comfortable. The fabric is softer than I expected.
Really happy with this set. The navy is gorgeous in person and it feels very comfortable to wear. Easy to dress up or down.
Really flattering on and true to size. I wore it all afternoon and felt comfortable the whole time.
Such an easy dress to wear. It looks dressed up without feeling too formal.
Simple, elegant and comfortable. It looked even nicer on than I expected
Love the fit around the waist and the way the fabric falls. Very happy with it.
THE ISLA EDIT
STYLE INSPIRATION
THE ISLA WELLINGTON EXPERIENCE
REAL STYLE, MADE FOR REAL LIFE
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OUR PROMISE
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30-day return window
Eligible change-of-mind returns can be requested within 30 days of receiving your order.
Return policyFree Shipping
Free shipping across New Zealand. Dispatched on the next business day after purchase.
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Payments are processed securely using the payment methods available at checkout.
Product FAQs
How do I choose my size?
Use the product-specific size information and fit guidance shown on the product page. Contact customer support if you need help before ordering.
When will my order arrive?
Orders normally require 1 to 3 working days for processing. After dispatch, estimated delivery is generally 8 to 12 working days, so most orders are expected to arrive approximately 9 to 15 working days after order confirmation. These are estimates, not guaranteed delivery dates.
Can I return an item?
Eligible change-of-mind returns can be requested within 30 days of receiving your order. Conditions apply and return instructions must be requested before sending an item back. Please review our Refund & Return Policy for full details.
How can I contact you?
Email support@islawellington.nz for customer support. Include your order number when contacting us about an existing order.