Size 18 Women's Swimwear

  • In stock
185 products
Brunette model wears flouncy black tankini

Acapulco Flouncy Bandeau Tankini Top

    $134.95
Sale
Brunette plus size women wears blue high waisted bikini bottom

Calypso High Waisted Pant

    Sale price $39.95 Regular price $59.95
Sale
Black and white flattering frill sleeve one piece for curve women

Black and White Dots V Neck Frill One Piece

    Sale price $99.95 Regular price $129.95
Curve woman wearing black and white dots frill v neck one piece

Black and White Dots Long Frill V Neck One Piece

    $149.95
Sale
Curve woman wearing high waisted blue and white dot swimwear pant in chlorine resistant

Vintage Dots Chlorine Resistant High Waisted Pant

    Sale price $39.95 Regular price $69.95
Blonde model wearing baby blue spotty one piece

Vintage Dots Chlorine Resistant Tank One Piece

    $149.95
Vintage blue and white spot rash vest for curve women in chlorine resistant

Vintage Dots Chlorine Resistant Short Sleeve Rash Vest

    $134.95
Curve model standing by a pool in a chlorine resistant blue and white Polkadot crossover one piece

Vintage Dots Chlorine Resistant Crossover One Piece

    $149.95
Sale
model sitting on the side of the pool wearing a blue and white polkadot high neck zip front swimsuit with frill sleeve detail

Vintage Dots Chlorine Resistant Frill Sleeve One Piece

    Sale price $119.95 Regular price $159.95
Blonde model wearing light pink high waisted swim pants on beach

Maldives High Waisted Pant

    $59.95
brunette model wearing a retro styled black crop bikini top with mesh polkadots on the sleeves

Mesh Polkadot Short Sleeve Crop Top

    $89.95
Blonde model wearing light pink floral bikini on beach

Maldives Underwire Bandeau Bikini Top

    $89.95
Blonde model wearing light pink tiered tankini at the beach

Maldives Bandeau Tiered Tankini Top

    $129.95
Red hair model wearing black with pink florals swimsuit

Pink Petals Chlorine Resistant Tank One Piece

    $149.95
blonde model wearing a short sleeve navy polkadot rash vest

Navy & White Dots Short Sleeve Rash Vest

    $109.95
brunette model wearing a strapless one piece bathing suit with twist detail in between the breast area

Navy & White Dots Twist Front Bandeau One Piece

    $119.95
Black 3 Tier One Piece Swimwear

Black 3 Tier One Piece

    $134.95
Sale

Summer Fields Twist Front Bandeau One Piece

    Sale price $99.95 Regular price $129.95
Sale
Curvy brunette model wearing an ruched underwire one piece in bright coloured floral print

Summer Fields Underwire One Piece

    Sale price $119.95 Regular price $149.95
Sale
Blonde model wearing green floral tummy control swim pant

Maui High Waisted Pant

    Sale price $20.00 Regular price $59.95
Sale
Brunette model wearing bright coloured high waisted swim pant for curve women

Summer Fields High Waisted Pant

    Sale price $39.95 Regular price $59.95

Maldives Twist Front Bandeau One Piece

    $129.95
Sale
ghost mannequin of a shirred bandeau one piece swimsuit with white background and pink, green, blue flower print

Summer Fields Shirred One Piece

    Sale price $99.95 Regular price $139.95
Sale
ghost mannequin of a white based floral print with pink, green and blue flower pattern in a wrap tie side style

Summer Fields Waist Tie One Piece

    Sale price $99.95 Regular price $139.95
Blonde model wears metallic pink criss cross one piece next to pool

Metallic Pink Criss Cross One Piece

    $119.95
Ghost mannequin black with white stripes v neck one piece

Acapulco V Neck One Piece

    $149.95
Ghost mannequin black polka dot one piece swimsuit

Mesh Polkadot Short Sleeve One Piece

    $129.95
Model wearing Chlorine Resistant Plain Black swim Leggings

Chlorine Resistant Black 3/4 Swim Pant

    $99.95
Plus size tankini top

Chlorine Resistant Navy & White Dots 3 Tier Tankini Top

    $149.95
Ghost mannequin black textured one shoulder one piece

Acapulco One Shoulder One Piece

    $139.95
plain black ruched high waisted pant

Black Belly Pant Bikini Bottoms

    $59.95
Curvy model wearing a black one piece bandeau plus size Australia

Black Flouncy Bandeau One Piece

    $119.95

Chlorine Resistant Black Zip Front Long Sleeve One Piece

    $149.95
Sale
Model standing by pool wearing navy high waisted swim pant with floral print for curve women

Montego High Waisted Pant

    Sale price $39.95 Regular price $59.95
Sale
model wearing navy based floral bikini top with long frill over bust for curve women

Montego Frill Bikini Top

    Sale price $59.95 Regular price $89.95
Sale
Ghost mannequin of flouncy bandeau swimsuit with removable straps in navy based floral print

Montego Flouncy Bandeau One Piece

    Sale price $99.95 Regular price $139.95
Blonde model wearing white and yellow floral v neck swimsuit

Tuscany Long Frill V Neck One Piece

    $149.95
Blonde model showing side of white and yellow shirred swimsuit

Tuscany Shirred One Piece

    $139.95
Blonde model wearing yellow floral v neck one piece

Tuscany V Neck One Piece

    $149.95
Sale
Blonde model wearing pink floral v neck bikini with high waisted pants

Seychelles High Waisted Pant

    Sale price $39.95 Regular price $59.95

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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