Size 18 Women's Swimwear

  • In stock
191 products
Chlorine Resistant Navy & White Dots Underwire One Piece

Chlorine Resistant Navy & White Dots Underwire One Piece

Capriosca Swimwear
$149.95
Black Short Sleeve Tie Front One Piece
Black curvy tie front one piece with sleeve and stomach ruching

Black Short Sleeve Tie Front One Piece

Capriosca Swimwear
$99.95
Leopard Sustainable Frill Sleeve One Piece

Leopard Sustainable Frill Sleeve One Piece

Capriosca Swimwear
$139.95
Lilac Florence Off The Shoulder Bikini Top
Sale
lilac floral off the shoulder bikini top

Lilac Florence Off The Shoulder Bikini Top

Capriosca Swimwear
Sale price $49.95 Regular price $99.95
Navy & White Dots Frill Sleeve One Piece
Polkadots Navy and White Frill Sleeve One Piece Swimwear

Navy & White Dots Frill Sleeve One Piece

Capriosca Swimwear
$129.95
Leopard Sustainable 3 Tier Tankini Top
Leopard ruffle plus size tankini top

Leopard Sustainable 3 Tier Tankini Top

Capriosca Swimwear
$129.95
Metallic Deep Teal Tie One Shoulder One Piece
Sale
blonde plus size model wearing the one shoulder one piece in metallic deep teal with an adjustable shoulder strap

Metallic Deep Teal Tie One Shoulder One Piece

Capriosca Swimwear
Sale price $59.95 Regular price $119.95
Acapulco Underwire Tankini Top
size 16 women standing on a beach wearing supportive underwire tankini top in textured black and white fabric

Acapulco Underwire Tankini Top

Capriosca Swimwear
$134.95
Midnight Garden Off the Shoulder One Piece
Sale

Midnight Garden Off the Shoulder One Piece

Capriosca Swimwear
Sale price $79.95 Regular price $159.95
Frenchy Black Double Frill Bikini Top
Sale
model wearing a off the shoulder frilled black floral bikini top and matching pant

Frenchy Black Double Frill Bikini Top

Capriosca Swimwear
Sale price $49.95 Regular price $99.95
Frenchy Black High Waist Bikini Bottoms
model wearing black floral high waisted swim pant with matching off the shoulder bikini top

Frenchy Black High Waist Bikini Bottoms

Capriosca Swimwear
$59.95
Navy & White Dots Underwire Swim Dress
Navy & White Polkadots Underwire Swim Dress Swimwear

Navy & White Dots Underwire Swim Dress

Capriosca Swimwear
$139.95
Honey Comb Black Underwire One Piece
Brunette plus size model wears underwire one piece in textured fabric

Honey Comb Black Underwire One Piece

Capriosca Swimwear
$129.95
Navy & White Dots Ruched Skirted Bikini Bottoms
navy and white dots retro pant

Navy & White Dots Ruched Skirted Bikini Bottoms

Capriosca Swimwear
$79.95
Navy & White Dots Crop Wrap Bikini Top
navy and white dots crop wrap top

Navy & White Dots Crop Wrap Bikini Top

Capriosca Swimwear
$79.95
Acapulco Cap Sleeve One Piece
model wearing black and white panelled zip front one piece at the pool

Acapulco Cap Sleeve One Piece

Capriosca Swimwear
$149.95
Frenchy Black V Neck One Piece
blonde model standing against wall wearing a black floral v neck one piece swimsuit

Frenchy Black V Neck One Piece

Capriosca Swimwear
$134.95
Chlorine Resistant Plain Black High Waist Bikini Bottoms
black high waisted chlorine resistant bikini bottom

Chlorine Resistant Plain Black High Waist Bikini Bottoms

Capriosca Swimwear
$64.95
Navy Blue Frill Sleeve One Piece
Blonde model wears navy zip front one piece swimsuit

Navy Blue Frill Sleeve One Piece

Capriosca Swimwear
$99.95
Leopard Sustainable Wrap Crop Bikini Top
leopard bikini wrap top for a big bust

Leopard Sustainable Wrap Crop Bikini Top

Capriosca Swimwear
$89.95
Midnight Garden Long Sleeve One Piece
Sale
brunette plus size model wearing long sleeve zip front one piece swimwear

Midnight Garden Long Sleeve One Piece

Capriosca Swimwear
Sale price $64.95 Regular price $129.95
Black 3 Tier Tankini Top
Plus Size Tankini Top

Black 3 Tier Tankini Top

Capriosca Swimwear
from $99.95
Chlorine Resistant Navy & White Dots Wide Strap Swim Dress
Blonde model wearing a wide strapped swimming dress in navy blue with the middle panel in a navy and white dots

Chlorine Resistant Navy & White Dots Wide Strap Swim Dress

Capriosca Swimwear
$149.95
Leopard Sustainable Long Sleeve One Piece
model wearing leopard print long sleeve one piece with front zip

Leopard Sustainable Long Sleeve One Piece

Capriosca Swimwear
$139.95
Frenchy Black Long Sleeve One Piece
model on beach wearing black floral long sleeve one piece bathing suit

Frenchy Black Long Sleeve One Piece

Capriosca Swimwear
$129.95
Chlorine Resistant Navy & White Dots Underwire Tankini Top
model wearing underwire navy and white dots tankini top

Chlorine Resistant Navy & White Dots Underwire Tankini Top

Capriosca Swimwear
$134.95
Black Skater Swim Skirt
black high waisted swim skirt

Black Skater Swim Skirt

Capriosca Swimwear
$54.95
Navy & White Dots Vintage Skirted One Piece
Navy and white spotted one piece in vintage style. The swimsuit has thick white straps

Navy & White Dots Vintage Skirted One Piece

Capriosca Swimwear
$129.95
Plain Black Rash Vest Long Sleeve
Brunette model wears plain black long sleeve rash vest with full zip front

Plain Black Rash Vest Long Sleeve

Capriosca Swimwear
$89.95
Jantzen Maui Mesh High Neck Mastectomy 1Pc White
plus size woman wearing white tropical high neck mesh jantzen swimsuit scoop low back

Jantzen Maui Mesh High Neck Mastectomy 1Pc White

Jantzen
$149.95
Sardinia One Shoulder One Piece
Sale

Sardinia One Shoulder One Piece

Capriosca Swimwear
Sale price $67.45 Regular price $134.95
Leopard Sustainable High Waist Bikini Bottoms
Animal print high waisted pant

Leopard Sustainable High Waist Bikini Bottoms

Capriosca Swimwear
$69.95
Leopard Sustainable Underwire Bikini Top
leopard plus size bikini top

Leopard Sustainable Underwire Bikini Top

Capriosca Swimwear
$89.95
Acapulco Retro Skirted One Piece
Brunette model wears textured black retro skirted one piece with wide adjustable straps

Acapulco Retro Skirted One Piece

Capriosca Swimwear
$154.95
Midnight Garden Off the Shoulder Tankini Top
Sale
brunette plus size women wearing midnight garden tankini top with off the shoulder frill detail

Midnight Garden Off the Shoulder Tankini Top

Capriosca Swimwear
Sale price $72.45 Regular price $144.95
Black Triangle Bikini Top
plain black triangle bikini top

Black Triangle Bikini Top

Curvy Swimwear
$59.95
Leopard Sustainable Sleeveless Zip Front One Piece
Leopard High Neck Mastectomy One Piece

Leopard Sustainable Sleeveless Zip Front One Piece

Capriosca Swimwear
$129.95
Plain Black High Waist Bikini Bottoms
Plain Black High Waisted Pant Bottom

Plain Black High Waist Bikini Bottoms

Capriosca Swimwear
$59.95
Acapulco Fresh Square Neck One Piece
Brunette model standing on a boat wearing a deep green textured bathing suit with square neckline

Acapulco Fresh Square Neck One Piece

Capriosca Swimwear
$154.95
Plain Black Short Sleeve Rash Vest
blonde size 18 women is wearing a short sleeve black rashvest with a functional front zip

Plain Black Short Sleeve Rash Vest

Capriosca Swimwear
from $89.95

Size 18 Swimwear

Size 18 is one of our most popular sizes here at Curvy Swimwear. With this in mind we have created a collection of swimwear in size 18 to suit every shape and satisfy every need. Our size 18 collection includes everything you could possibly want in your swim wardrobe from bikini separates to one pieces, rashies and swim dresses. Browse our range and discover your new favourite swimsuit from one of our fabulous Australian brands. 

Shop by cup size or style, colour or price, and narrow your selection down to the perfect swimsuit for you. If you need help choosing, we are available via our online chat or email to answer any questions you have about style, size, or suitability. Our goal is to make your online shopping a breeze and for you to find a swimsuit that gives you all the confidence you need to hit the beach this summer. 

Size 18 One Piece Swimwear

Here at Curvy Swimwear, one piece swimsuits are our specialty. We have chosen the best one piece swimsuits from our favourite Australian brands to give you the best options in size 18 swimwear. 

You'll find fabulous one piece swimsuits in size 18 to suit your shape as well as your needs. Don't want strap marks? Our bandeau one pieces will ensure a tanline free summer. Need extra bust support? An underwire one piece might be just what you need. Spending long hours in the pool? A chlorine resistant one piece with sleeves will give you lasting protection. Whatever you need, you'll find it in our size 18 one piece swimsuit collection. 

Size 18 Swimwear Australia 

Shop easily online for size 18 swimwear in Australia and internationally. Curvy Swimwear offers excellent customer service, fast delivery, and the best range of plus size swimwear in Australia and New Zealand. 

Based on the beautiful Gold Coast, we know a thing or two about swimwear and ensure your time online with us is easy to navigate and a pleasurable experience. 



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