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 > Beach > Statement
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You know that moment before the pool.
The mirror. The pulling. The sigh.
This set changes that. The flowy empire tankini floats over your midsection — no cling, no tug — and the matching boy shorts cover your hips and thighs so you can sit, walk, and swim without adjusting.

The bright print on the straps and side panels pulls the eye up, lengthening your whole silhouette.
Slip it on and it's ready to wear. No fussing. No cover-up needed.
✓ Floats over your tummy, doesn't cling
The empire A-line drape sits under the bust and skims over your midsection instead of hugging it. You get coverage that moves with you — poolside, in the water, sitting down.

✓ Boy shorts that stay down, not up
Mid-thigh shorts with a wide waistband cover your hips and thighs and stay in place. No rolling, no riding up when you walk or sit.

✓ Wide straps and V-neck lift for full busts
Soft gathers at the neckline and wide, secure straps give real support for a D-cup and up. Move, bend, swim — everything stays where it should.

✓ Print placement that lengthens your silhouette
Vertical print accents on the straps and side panels draw the eye up and down, not across. The classic black base is slimming — the color is where you want it.

✓ Resort-ready, not matronly
Flattering coverage doesn't have to mean frumpy. This set was designed to look styled at the beach, the pool, or the resort — not like a swim dress from another decade.

What you get today
Seasonal production run — once this batch sells out, restock pricing may change.
Grab the Sirella tankini set today while our summer stock lasts.
30-day at-home fit trial
Try the Sirella set at home for 30 days. If it doesn't fit, look right, or wear the way you expected, return it for a full refund.
Does the top stay down in the water?
Yes. The empire drape is weighted by the seam under the bust and moves with you rather than floating up. Most women wear it swimming, wading, and sitting poolside without issue.
How does the sizing run?
This set is designed with generous plus-size cuts (US 14 to US 24). Check the size chart against your bust, waist, and hip measurements. If you're between sizes, size up for the most comfortable drape.
Do the boy shorts roll up when you walk?
The wide waistband and mid-thigh cut are designed to stay in place during normal movement — walking, sitting, swimming. They fit like a bike short.
Can I wear the top separately with regular shorts?
Yes. The tankini top is styled enough to pair with denim shorts or a skirt as a beach top, though it's cut for swim use.
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
You know that moment before the pool.
The mirror. The pulling. The sigh.
This set changes that. The flowy empire tankini floats over your midsection — no cling, no tug — and the matching boy shorts cover your hips and thighs so you can sit, walk, and swim without adjusting.

The bright print on the straps and side panels pulls the eye up, lengthening your whole silhouette.
Slip it on and it's ready to wear. No fussing. No cover-up needed.
✓ Floats over your tummy, doesn't cling
The empire A-line drape sits under the bust and skims over your midsection instead of hugging it. You get coverage that moves with you — poolside, in the water, sitting down.

✓ Boy shorts that stay down, not up
Mid-thigh shorts with a wide waistband cover your hips and thighs and stay in place. No rolling, no riding up when you walk or sit.

✓ Wide straps and V-neck lift for full busts
Soft gathers at the neckline and wide, secure straps give real support for a D-cup and up. Move, bend, swim — everything stays where it should.

✓ Print placement that lengthens your silhouette
Vertical print accents on the straps and side panels draw the eye up and down, not across. The classic black base is slimming — the color is where you want it.

✓ Resort-ready, not matronly
Flattering coverage doesn't have to mean frumpy. This set was designed to look styled at the beach, the pool, or the resort — not like a swim dress from another decade.

What you get today
Seasonal production run — once this batch sells out, restock pricing may change.
Grab the Sirella tankini set today while our summer stock lasts.
30-day at-home fit trial
Try the Sirella set at home for 30 days. If it doesn't fit, look right, or wear the way you expected, return it for a full refund.
Does the top stay down in the water?
Yes. The empire drape is weighted by the seam under the bust and moves with you rather than floating up. Most women wear it swimming, wading, and sitting poolside without issue.
How does the sizing run?
This set is designed with generous plus-size cuts (US 14 to US 24). Check the size chart against your bust, waist, and hip measurements. If you're between sizes, size up for the most comfortable drape.
Do the boy shorts roll up when you walk?
The wide waistband and mid-thigh cut are designed to stay in place during normal movement — walking, sitting, swimming. They fit like a bike short.
Can I wear the top separately with regular shorts?
Yes. The tankini top is styled enough to pair with denim shorts or a skirt as a beach top, though it's cut for swim use.
VERIFIED CUSTOMER FEEDBACK
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.
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.
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THE ISLA WELLINGTON EXPERIENCE
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OUR PROMISE
Eligible change-of-mind returns can be requested within 30 days of receiving your order.
Return policyFree shipping across New Zealand. Dispatched on the next business day after purchase.
Shipping policyPayments are processed securely using the payment methods available at checkout.
Use the product-specific size information and fit guidance shown on the product page. Contact customer support if you need help before ordering.
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.
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.
Email support@islawellington.nz for customer support. Include your order number when contacting us about an existing order.
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