Size 18 Women's Swimwear

  • In stock
190 products
Sale
plus size model wearing pink paisley high neck one piece

Amalfi Pink Frill Sleeve One Piece

Capriosca Swimwear
Sale price $67.45 Regular price $134.95
Honey Comb Black | Tankini Top Underwire

Honey Comb Black Underwire Tankini Top

Capriosca Swimwear
$119.95
Blonde model at the beach wearing a black based floral swimsuit with orange and yellow flowers with ruffle detail at the front

Frenchy Black 3 Tier One Piece

Capriosca Swimwear
$144.95
Plus size woman wearing a turquoise and black floral one piece swimsuit with long sleeves by the pool

Corsica Turquoise Chlorine Resistant Long Sleeve One Piece

Capriosca Swimwear
$149.95
Chlorine Resistant Navy & White Dots Tank One Piece

Chlorine Resistant Navy & White Dots Tank One Piece

Capriosca Swimwear
$149.95
blonde size 16 model wearing short sleeve zip front rash vest in navy blue colour

Navy Short Sleeve Rash Vest

Capriosca Swimwear
$89.95
Sale
womans plus size underwire bikini top amalfi pink

Amalfi Pink Underwire Bikini Top

Capriosca Swimwear
Sale price $49.95 Regular price $99.95
Black underwire plus swimsuit

Acapulco Underwire One Piece

Capriosca Swimwear
$149.95

Sunseeker Isla Square Neck One Piece

Sunseeker
$169.95
black plus size underwire one piece

Black Scooped Underwire One Piece

Capriosca Swimwear
$109.95
Navy knee length bike pants for swimming in pools

Chlorine Resistant Navy Bike Swim Pant

Capriosca Swimwear
$89.95
model wearing a navy blue high waisted swimming pant made in chlorine resistant fabric

Chlorine Resistant Navy High Waist Bikini Bottoms

Capriosca Swimwear
$59.95

Navy High Waist Bikini Bottoms

Capriosca Swimwear
$49.95
navy long sleeve rash vest

Chlorine Resistant Plain Navy Long Sleeve Rash Vest

Capriosca Swimwear
$119.95
blonde plus size women wears cute black boyleg one piece with bow

Honey Comb Black Boyleg Bow One Piece

Capriosca Swimwear
$119.95
Blonde model wearing navy and white dots boyleg swimsuit

Navy & White Dots Boyleg One Piece With Bow

Capriosca Swimwear
$119.95
Long Sleeve Plus Size Rashie

Chlorine Resistant Plain Black Rash Vest Long Sleeve

Capriosca Swimwear
$119.95
Sale
navy and white dots plus size tankini top

Navy & White Dots Swing Bandeau Tankini Top

Capriosca Swimwear
Sale price $59.95 Regular price $119.95
Navy and White Dots | Cute Plus Size Bikini Bottom

Navy & White Dots Tie Side Bikini Bottoms

Capriosca Swimwear
$44.95
Sale
leopard plus size bikini

Leopard Sustainable Two Way Bikini Top

Capriosca Swimwear
Sale price $49.95 Regular price $99.95
Sale
Leopard vintage style bikini pant with skirt

Leopard Sustainable Retro Skirted Bikini Bottoms

Capriosca Swimwear
Sale price $39.95 Regular price $79.95
Sale
Retro Check Tie Side Swim Pant Bottom

Retro Check Tie Side Bikini Bottoms

Capriosca Swimwear
Sale price $10.00 Regular price $44.00
Sale
retro floral ruffle bikini top

Retro Floral Double Frill Bikini Top

Capriosca Swimwear
Sale price $44.95 Regular price $89.95
Plus size model wearing floral long sleeve rash vest with zip on the beach Australia

Frenchy Black Long Sleeve Rash Vest

Capriosca Swimwear
$109.95
Sale
blonde plus size women wearing pink frill bikini pant with a square neckline bikini top

Amalfi Pink Frill Bikini Bottoms

Capriosca Swimwear
Sale price $34.95 Regular price $69.95
Sale
Model wearing rollover low rise bikini bottoms

Chlorine Resistant Plain Black Rollover Bikini Bottoms

Capriosca Swimwear
Sale price $19.95 Regular price $49.95
Sale
retro floral tied swim bottom

Retro Floral Tie Side Bikini Bottoms

Capriosca Swimwear
Sale price $24.95 Regular price $49.95
Sale
brunette model wearing lace up one piece in a light metallic blue

Provence Blue Lace Up One Piece

Capriosca Swimwear
Sale price $59.95 Regular price $119.95
Sale
brunette model wears plus size paisley sky blue print with double frill detail on the top

Santorini Blue Frill Off The Shoulder Bikini Top

Capriosca Swimwear
Sale price $20.00 Regular price $89.95
Sale
blonde plus size model wears bright green lace up one piece swimsuit

Metallic Green Lace Up One Piece

Capriosca Swimwear
Sale price $59.95 Regular price $119.95
Plus size model in animal strapless underwire bandeau australia

Sunseeker Romie Empire Bandeau Singlet Animal

Sunseeker
$139.95
Plus size model wearing blue and white tropical jantzen ruched tie one piece

Jantzen Fiji Gathered Surplice One Piece Navy

Jantzen
$149.95
Plus size model wearing blue tropical ruched jantzen swimsuit

Jantzen Fiji DD/E Front Ruched One Piece Navy

Jantzen
$149.95
Sale
Plus size brunette woman wearing blue mastectomy navy zip front one piece

Jantzen Fiji Active Zip Front Mastectomy One Piece Navy

Jantzen
Sale price $99.95 Regular price $159.95
Brunette model wearing bora bora underwire tankini top

Bora Bora Underwire Tankini Top

Capriosca Swimwear
$119.95
Blonde plus size model wearing bora bora full piece swimsuit australia

Bora Bora Underwire One Piece

Capriosca Swimwear
$134.95
Sale
brunette model in front of a pool wearing aqua blue print mid rise pant bottom

Whitehaven Side Ruched Mid Bikini Bottoms

Capriosca Swimwear
Sale price $34.95 Regular price $69.95
Sale
brunette model on the beach wearing a blue patchwork print underwire bikini top

Whitehaven Underwire Bikini Top

Capriosca Swimwear
Sale price $49.95 Regular price $99.95
Sale
blonde model standing in front of the pool in an aqua blue patchwork one piece swimsuit

Whitehaven V Neck One Piece

Capriosca Swimwear
Sale price $72.45 Regular price $144.95
model standing in front of a pool wearing a black above knee boardshort with tie front detail

Plain Black Luxe Sport Stretch Board Shorts

Capriosca Swimwear
$79.95

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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