10 Best Bikini Size 18 in The UK

Last updated on 23/08/2025

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CUPSHE

CUPSHE Women's Bikini Set Twist Front Tie Side Bikini Swimsuit Two Piece Swimwear Bathing Suits Pure Black XL

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Why We Love It

Stylish design for any occasion.
Unique pattern adds individuality.
Available in various sizes.

Main Highlights

Design: Tank and Wrapped Bikini Top with Lace-Up at Back. High Waisted and Floral Printed Bikini Bottom. About Cup Style: with Removable Pads
The Pattern is One of a Kind - The Exact Pattern You Receive Will Be Slightly Different Than the One Shown
Garment Care: Regular Wash. Recommend with Cold Water. Do not Use Bleach. Do not Tumble Dry
Occasion: Best Holiday Gifts for Mom, Wife, Girlfriend or Women You Love. Perfect for Tropical Vacations, Summer, Beach & Pool, Honeymoon, Cruise
Available in XS, S, M, L, XL, XXL. (XS=4-6, S=8-10, M=12-14, L=16-18, XL=20-22). Please Refer to Our Size Chart for Specific Measurements to Achieve the Perfect Fit.

Adigaber Women's Two Piece Swimsuits Criss Cross Top Bikini High Waisted Bottom Tummy Control Bathing Suits Vintage Print Swimwear

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Why We Love It

Chic, unique cross chest design.
Promotes figure-flattering, high-waisted elegance.
Offers supportive wide straps.

Main Highlights

82% Polyamide, 18% Spandex
Unique design: The cross chest design is very sexy and charming. The belt design at the bottom echoes the pattern of the jacket, showing more youth and vitality, without fear that it will be penetrated.
The wide shoulder strap of this bikini swimsuit provides sufficient support for your chest and back.
The high-waisted bikini swimming trunks have the effect of tightening the abdomen, helping you cover the problem area and making you look slim and beautiful.
Occasions：Summer, Beach, Seaside, Swimming pool, Sport. Any time, season or occasion you want to wear it, it will show your charming figure without reservation.

RXRXCOCO Women Wrap Bikini Set Push Up High Waisted 2 Piece Swimsuits Plus Size Swimwear Black

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Why We Love It

Stylish tie back straps.
High waist tummy control.
Soft and stretchy fabric.

Main Highlights

Cross Push Up Bikini Top: Tie back wrap straps, Adjustable spaghetti straps, Built-in padding;
Ruched Tummy Control Swimsuits Bottom: High waist, Ruching front, Modest Coverage;
Size: (Our Size Chart) Small=UK 8-10, Medium=UK 10-12, Large=UK 12-14, X-large=UK 14-16
Occasion: Swimming, Tropical vacation, Beach party, Cruise;
Material: Polyester + Spandex, Full lined, Soft and stretchy;

High Waisted Bikini Sets for Women, 2PCS V Neck Tummy Control Ruched Drawstring Swimwear for Ladies Beach Pool Bathing Suit

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Why We Love It

Flattering high-waisted design.
Comfortable adjustable support.
Quick-dry fabric for versatility.

Main Highlights

👙【Flattering High-Waisted & Tummy Control】This bikini set features a high-waisted bottom that elongates legs and smooths the tummy, offering full coverage while creating a sexy retro silhouette. Built-in tummy control panel and adjustable spaghetti straps provide gentle compression to flatten the abdomen and lift the bus. Perfect for women who want confidence at the beach or pool, Say goodbye to awkward adjustments—stay secure all day!
🏊‍♀【Chest Support & Adjustable Drawstring Design】Adjustable wide straps and push-up bra provide comfort and extra support for a flattering feminine look. The color block, contrast trim and v neck design make you stand out on the beach or pool. By adjustable drawstrin, you can freely adjust the length of the shorts, adjusting upward to show your curves and buttocks lift, fully displaying your body shape and style; or adjusting downward to provide sufficient coverage to avoid cold body caused.
💎【Premium Quality】Made of high-quality soft and stretchy fabric, the double lining design is gentle on the skin and eliminates the need for underwear, providing ultimate comfort and practicality. Breathable and sweat-wicking material provides UPF 50+ sun protection, blocking harmful UV rays, not only ensuring that you are protected from sunburn and skin damage while enjoying your time in the water, but they won't pass through when wet; opaque, effectively protects your privacy.
🌊【Widely Used】This bikini set is designed to take you from sunbathing to swimming to summer adventures with confidence. Whether you're on a tropical getaway, or soaking up the sun at beach, keeps you looking chic and feeling comfortable. The quick-dry fabric means you can transition effortlessly from swimming to a beachside lunch without staying wet for hours. Plus, the trendy textured design perfectly with a sarong, shorts, or a sheer cover-up for a seamless day-to-night beach club look.
🏖️【Size Choice and Care Tips】Before shopping, please refer to our size chart pictures for specific measurements for a perfect fit. If you have larger hips, please choose one size larger for women's swim bikini set. It is recommended to wash in cold water. Please do not use bleach and do not tumble dry.

FemiChic High Waisted Bikini Sets for Women Tummy Control Swimwear Push Up Padded Top Plus Size Two Piece Stretchy Vintage Bottoms Swimsuit with Adjustable Shoulder Straps(Green,L)

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Why We Love It

Soft, stretchy, and quick-drying.
Variety of colors and sizes.
Stylish design with custom support.

Main Highlights

Bikini Fabric: The FemiChic bikini sets is crafted from a fabric blend of 82% nylon and 18% spandex, offering a soft, stretchy, and quick-drying touch that ensures all-day comfort. With a smooth, skin-friendly lining, it promises a gentle touch against your skin, whether you're swimming in the ocean or basking in the sun, providing an unparalleled sense of comfort
Colour and Size: This tummy control swimwear comes in a variety of colours including black, navy blue, turquoise, green, burgundy, blue and white with sizes ranging from S to XXL. You can find the perfect fit to showcase your charm and let your personality shine through
Design: The FemiChic bikini tops come with detachable cups for custom support, while the crossed-strap front adds a fashionable flair and extra lift. The U-back style accentuates the length of your back, contributing to the swimsuit's chic design. High-waisted bottoms with ruching enhance your silhouette with a touch of retro charm. The vibrant elastic bands at the chest and waist add a playful accent, making you stand out by the pool
Occasions: Whether you're on a beach holiday, attending a pool party, or engaging in water sports, the FemiChic women's bikinis is perfectly adaptable. Pair it with a wide-brimmed sun hat and a pair of sunglasses to complete your holiday look. Moreover, the separate design of this bikini allows for easy mixing and matching with other swimwear pieces, giving you the freedom to change your style according to the occasion
Care Advice: To maintain the vibrant colours and good condition of your swimming costume women 2 piece, we recommend hand washing. If you opt for machine washing, remember to remove the padding in advance to prevent damage

Tuopuda Plus Size Bikini Sets for Women Two Piece Bikini Top High Waisted Bikini Bottom Tummy Control Ruched Bathing Suits Swimming Costume 2 Piece Padded Beachwear Push Up, Blue Printing, 4XL

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Why We Love It

Flattering high waisted design.
Comfortable and quick-drying material.
Great support with adjustable straps.

Main Highlights

【Bikini Sets for Women UK】The swimsuit for women plus size has twist front bikini tops match with hight waist bottom perfectly. The two piece bikinis for women plus size is made up of 82% Nylon and 18% Spandex, which is soft, breathable, quick-drying, highly elastic and comfortable.
【Bikini Top Push Up】The bikini top features a V-neckline, show off your cleavage in this plus size bikini. Immovable padded bra and adjustable wide shoulder straps provides great support. This cute bikini set has a vintage style that shows off your slim curves.
【High Waisted Bikini Bottoms】The ruched swimsuit for women plus size with high waisted design has a great tummy control effect and can hide your belly, making it easy to show off your perfect body curves. The color block design makes this two piece bikini set extremely flattering! Perfect for suitable for women, ladies, teens, girls, and juniors.
【Swimming Costume Women 2 Piece】Plus size swimsuits for women is suitable for women who do not feel confident about their body, such as women with large breasts or postpartum mothers, as this women's bikini adapts to different body shapes and exudes different charms.
【Tummy Control Bikini Set】This plus-size swimsuit is suitable for beach, sand, swimming pool, sunbathing, spa, surfing, vacation and so on. Pair it with a floppy hat, sunglasses and sandals for a summery look. Different colors have different styles, suitable for many occasions, also a perfect gift for family, friends and lovers.

CheChury Women High Waisted Bikini Set Push up Deep V Neck Swimsuits Plus Size Bikini Tops Tummy Control 2 Piece Bathing Suits,Black,4XL

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Why We Love It

Wireless and very comfortable.
Great tummy control design.
Perfect for summer activities.

Main Highlights

Feature: Solid color, Sexy V neck, Self-tie Halter Straps,High waisted, wireless bralette, 2 piece bikini set.
Plus Size Swimsuits 2 Piece: The soft push up padded bra V neck bikini top with adjustable wide straps and self-tie halter offers enough support and is very comfortable.
High Waisted Bikini Swimsuit :High waist swim bottom with widened design can better pull up the waist line and show better proportion.
Tummy Control Bathing Suit :Modest bathing suit bottom of retro style has full coverage but still is very stylish.Fully lined swim bottom has great tummy control and gives you more safety.
Occasion: suitable for summer, holiday, swimming, pool party, water party, weekend, surfing, beach.（XL=UK 12-14, XXL=UK 16-18, 3XL=UK 20-22, 4XL=UK 24-26)

AI'MAGE Bikini Sets for Women Summer Bathing Suits High Waisted Swimsuits Army Green M

26% OffFree Shipping

Why We Love It

Perfect for summer occasions.
Soft, quick-drying high-quality fabric.
Stylish design accentuates your curves.

Main Highlights

Occasion: The triangle bikini set for women is the perfect choice for the entire summer, vacations, beach and pool trips, and honeymoons!
Material: Removable Padding. The bikini is made of high-quality fabric that is soft and quick-drying.
Design: Uniquely designed push-up bikini that accentuates curves. The cross design on the front adds beauty to the bikini. The high-waisted design.
Tip: Pair it with a beach dress, a floppy hat, sunglasses, and sandals for a luxurious look.
Note: Washing in cold water is recommended. To find the optimal size for you, please refer to the size chart.

Women's High Waisted Bikini Set Tummy Control Swimwear with Adjustable Shoulder Straps 2 Piece Beach Holiday Swimming Costume for Pool Vacation Spa (UK, Alpha, M, Regular, Regular, Green)

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Why We Love It

Stylish tummy control design.
Adjustable for perfect fit.
Soft and breathable fabric.

Main Highlights

High-waisted Design：High-waisted design, stylish and tummy control.While wearing comfortable, it perfectly modifies your body shape and makes your body look more sexy.
Adjustable Size: Women's high waisted bikini set with adjustable shoulder straps that can be adjusted to your body type to make it the best size for you.
High Quality Fabric：Bikini swimsuits is made of premium nylon fabric, which is silky soft, lightweight and breathable, providing you with ultimate comfort.
Suitable for Various Occasions: Whether you're planning to go to the beach or attend a charming pool party, our bikini set are great for showing off your impressive figure.
After Sales Service: If you have any dissatisfaction with our women's high waisted bikini set, you can contact us for replacement or refund.

Navneet Women Bikini Top Sexy Triangle Bikini Adjustable Strings Padded Swimwear Beach Bathing Suits Black L

6% OffFree Shipping

Why We Love It

Adjustable and comfortable fit.
Perfect for all occasions.
Stylish and versatile design.

Main Highlights

Features: Triangle bikini top; removable padded; adjustable string; halter neck bikini tops; front deep v neck design; no underwire
Material: The push up bikini tops are made of soft material, comfy to wear
Matching: Greatly matched with sexy bikini bottoms or cover ups for bikini outfits, or y2k mini skirts or jeans for festival outfits
Occasions: Perfect for swimming, bathing, beach, every bikini occasion, holiday, cosplay outfits, festival outfits, going out, club and music festival.
Size: Our size chart is different from amazon’s, so please kindly reference the size chart we provide

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We scanned 1986 products

We reviewed these offers relevant to the Bikini Size 18 within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like CUPSHE, Adigaber, RXRXCOCO, BAEIDO, FemiChic, Tuopuda, CheChury, AI'MAGE, BOYSSPAA, Navneet, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Bikini Size 18 in the market, we considered we took a deep dive into 9931 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

We concluded that:

The clear winner of our analysis is CUPSHE Women's Bikini Set Twist Front Tie Side Bikini Swimsuit Two Piece Swimwear Bathing Suits Pure Black XL. We love many things about this product by CUPSHE. What sets it apart from the competition is Stylish design for any occasion. , Unique pattern adds individuality. , Available in various sizes.
The best value product for most shoppers and where user satisfaction is continuously the highest is Adigaber Women's Two Piece Swimsuits Criss Cross Top Bikini High Waisted Bottom Tummy Control Bathing Suits Vintage Print Swimwear by Adigaber based on online reviews by bloggers, experts and online shoppers.
The biggest bargain at the moment for Bikini Size 18 and the best cost-to-value ratio is AI'MAGE Bikini Sets for Women Summer Bathing Suits High Waisted Swimsuits Army Green Mat AI'MAGE with a 26% discount.
Our list of the best Bikini Size 18 is updated regularly to reflect new releases and changes in product availability, so be sure to check back often for the latest rankings and discounts.

10 Best Bikini Size 18 in The UK

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We scanned 1986 products

We concluded that: