END OF SEASON SALE CLOSES IN: 00:00:00
4.7/5 | 3875+ Reviews

Rosie | Elegant Cross-Over Swimsuit

£48.95

£24.95

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END OF SEASON SALE UPDATE: Inventory is low. If you can still click Add to Cart, your size is available. — Oliver & Kate

Radiate Confidence – At the Beach and Beyond

Do you want to feel stylish, feminine, and comfortable on holiday or by the pool? The Rosalia swimsuit is designed to flatter your figure and give you an instant boost of confidence. Thanks to the cross-over design around the waist, it creates a slimming effect while the V-neck adds elegance without revealing too much. This is the swimsuit you wear with pride — made for you to feel beautiful and free.
Whether you’re relaxing in the sun, taking a stroll on the beach, or enjoying a cocktail on the terrace: with Rosalia, you'll feel your best.
4 REASONS WHY YOU DESERVE THE ROSALIA SWIMSUIT
  • Instant Slimming Effect
    The cross-over lines accentuate the waist and create an optical illusion of a slimmer silhouette.
  • Feminine and Elegant Neckline
    The V-neckline adds a subtle, flattering touch without excessive exposure.
  • Comfort that Lasts
    The fitted cut provides support and freedom of movement all day long.
  • Modern and Refined Design
    The unique pattern gives a stylish appearance that sets you apart.
SIZE CHART:
Size Bust (cm) – Ladies Waist (cm) – Ladies Hips (cm) – Ladies Recommended Height (cm)
XS 78 62 86 155
S 84 66 92 160
M 90 72 98 165
L 96 78 104 170
XL 102 84 110 175
XXL 108 90 116 180
3XL 114 96 122 185

We offer Free Shipping on all orders within the USA.

Every package is shipped securely with UPS, and you’ll receive your tracking number within 1 business day so you can follow your delivery every step of the way.

30-Day Money-Back Guarantee

We love our products and are confident that you will too! That’s why we offer a 30-day return policy. If you're not satisfied with your purchase for any reason, you can return or exchange it within 30 days.

At Oliver & Claire, we believe in creating clothing that feels as good as it looks. That’s why we use high-quality, eco-friendly fabrics designed to be both sustainable and durable.

Our focus is on timeless, premium pieces you’ll enjoy wearing for years—proving that sustainable fashion can go hand in hand with style, comfort, and quality.

Trusted by Thousands

★★★★★

The delivery was smooth with Royal Mail and I got my tracking the next day. Everything went exactly as promised, which is not always the case when ordering clothes online. Big plus!

Carol P.
Oxford, UK
★★★★★

Love the way my sweater fits, it's flattering but still comfortable. I've already worn it to work and got compliments. It feels like something I'll keep in my wardrobe for years. Highly recommended

Diane R.
Edinburgh, UK
★★★★

Really impressed with how easy the whole process was. Order confirmed right away and the package arrived earlier than expected. The shoes are so comfy, wear them all day at work without any problem.

Catherine W.
Leeds, UK
★★★★★

The sweater was a little lighter than I expected, but honestly it's still super comfortable and I've been reaching for it a lot. Overall, I'm happy I bought it.

Elaine F.
Bristol, UK
★★★★★

The jacket arrived quickly and honestly looks even better in person. The fabric feels high quality, and it's warm without being bulky. Pleasantly surprised.

Linda M.
Birmingham, UK
★★★★★

I had a small question about sizing and their customer service got back to me the same evening. They were super helpful, and the size they recommended fits perfectly. That gave me confidence to order again.

Rebecca S.
Manchester, UK

30-DAY MONEY-BACK GUARANTEE

We stand behind every piece at Oliver & Kate.
Your satisfaction is our promise, which is why we offer a 30-Day Money-Back Guarantee. If your order isn't exactly what you hoped for, simply return it for a full refund.

FROM OXFORD WITH LOVE!

Oliver and Kate proudly serves the U.K., bringing over 22 years of experience in timeless, high-quality fashion. What began as a shared dream between a devoted husband and wife has blossomed into a true family business. From first browse to unboxing, your satisfaction is our priority, as we deliver elegance and a touch of Boston authenticity straight to your doorstep.

FREE SHIPPING

Orders in the United Kingdom are always shipped for free with Royal Mail and insured with track & trace.

30-DAY MONEY-BACK GUARANTEE

At Oliver & Kate, you can shop with peace of mind thanks to our 30-day money-back guarantee. Simply return your items within 30 days.

SECURE PAYMENTS

Pay with confidence using major credit & debit cards (Visa, Mastercard, etc.) and digital wallets. Your payment details are always safe and protected.

FREE SHIPPING

Orders in the United Kingdom are always shipped for free with Royal Mail and insured with track & trace.

30-DAY MONEY-BACK GUARANTEE

At Oliver & Kate, you can shop with peace of mind thanks to our 30-day money-back guarantee. Simply return your items within 30 days.

SECURE PAYMENTS

Pay with confidence using major credit & debit cards (Visa, Mastercard, etc.) and digital wallets. Your payment details are always safe and protected.