Size 18 Women's Swimwear

    184 products
    Sale
    Blonde model wearing blush pink floral zip front rash vest

    Seychelles Long Sleeve Rash Vest

      Sale price $99.95 Regular price $119.95
    Sale
    Blonde model wearing light pink floral v neck tankini swim top

    Seychelles V Neck Tankini Top

      Sale price $89.95 Regular price $129.95
    Sale
    Model wearing blush pink floral frill sleeve one piece

    Seychelles Frill Sleeve One Piece

      Sale price $99.95 Regular price $134.95
    Sale
    Blonde model wearing light pink floral v neck one piece

    Seychelles V Neck One Piece

      Sale price $99.95 Regular price $139.95
    Sale
    Blonde model wearing pink floral high neck one piece swimsuit

    Seychelles High Neck Keyhole One Piece

      Sale price $119.95 Regular price $159.95
    Model wearing navy zip front rash vest

    Chlorine Resistant Navy Wetshirt Short Sleeve Rash Vest

      $119.95
    Blonde model wearing black hipster bikini bottoms with triangle bikini top

    Black Hipster Pant Bikini Bottoms

      $64.95

    Jantzen Wild Gathered Surplice

      $149.95
    Sale
    Blonde model wearing blush pink strapless one piece swimsuit

    Seychelles Underwire Bandeau One Piece

      Sale price $119.95 Regular price $159.95
    Blonde model wearing strapless black one piece swimsuit

    Plain Black Twist Front Bandeau One Piece

      $109.95
    Ghost mannequin black tankini

    Black Chlorine Resistant Tank Tankini Top

      $109.95
    Ghost mannequin orange and yellow floral and black printed twist front bandeau one piece

    Frenchy Black Twist Front Bandeau One Piece

      $129.95
    Woman wearing a Chlorine Resistant zip front one piece in pink

    Chlorine Resistant Pink Sleeveless Zip Up One Piece

      $144.95
    Blonde curvy woman wearing flattering zip front tankini swim top in chlorine resistant

    Luxe Sport Chlorine Resistant Zip Front Tankini Top

      $129.95
    Bronde model next to pool wearing chlorine resistant 3/4 zip front one piece in navy and pink

    Luxe Sport Chlorine Resistant 3/4 Sleeve One Piece

      $149.95
    Ghost mannequin of zip front one piece in navy with pink and white

    Luxe Sport Chlorine Resistant Navy/Pink Sleeveless Zip Up One Piece

      $144.95
    Ghost mannequin pink high waisted swim bottom

    Chlorine Resistant Pink High Waisted Pant

      $64.95
    Model showing side of black floral strapless one piece at beach

    Bora Bora Twist Front Bandeau One Piece

      $129.95
    Black One Piece Swimwear

    Black Criss Cross One Piece

      $119.95
    Ghost mannequin navy and white dots tankini

    Chlorine Resistant Navy & White Dots Underwire Tankini Top

      $134.95
    brunette plus size women wears black 3 tier chlorine resistant tankini top

    Chlorine Resistant Black 3 Tier Tankini Top

      $134.95
    Blonde curve model wearing animal print one piece with ruffles

    Snow Leopard 3 Tier One Piece

      $144.95

    Snow Leopard High Waisted Pant

      $59.95
    Ghost mannequin black floral bandeau one piece swimsuit

    Wildflowers Chlorine Resistant Twist Front Bandeau One Piece

      $149.95
    Sale
    Brunette model wearing tummy control high waisted pant in pastel paisley print

    Paisley Pop High Waisted Pant

      Sale price $39.95 Regular price $59.95

    Malibu High Waisted Pant

      $59.95
    Sale
    Blonde plus size model wearing a paisley blue rash vest with zip front one piece

    Paisley Pop Short Sleeve Rash Vest

      Sale price $89.95 Regular price $109.95
    Sale
    Brunette model wearing a ruched high neck tankini top for curve women

    Paisley Pop High Neck Twist Front Tankini Top

      Sale price $89.95 Regular price $134.95

    Malibu 3 Tier One Piece

      $144.95
    Sale
    Blonde model wearing a paisley blue and yellow one piece next to pool for curve women

    Paisley Pop High Neck Twist Front One Piece

      Sale price $99.95 Regular price $149.95
    Ghost mannequin of crossover wrap one piece in pink floral with black for curve women

    Malta Crossover One Piece

      $129.95
    Blonde model next to water wearing supportive underwire tankini top for curve women

    Malta Underwire Tankini Top

      $119.95
    Blonde model on boat next to water wearing plus size swimsuit with pink floral print

    Malta Underwire One Piece

      $139.95
    Ghost mannequin of flouncy tankini top in black leopard print with removable straps

    Snow Leopard Flouncy Bandeau Tankini Top

      $119.95
    Brunette model on boat wearing plus size flouncy bandeau one piece in pink floral print

    Malta Flouncy Bandeau One Piece

      $129.95
    Model wearing black chlorine resistant swim dress

    Chlorine Resistant Black Wide Strap Swim Dress - NO PANT

      $144.95

    Snow Leopard New Bandeau One Piece

      $139.95
    Brunette model wearing navy and orange multi coloured floral swim pant

    Bahamas High Waisted Pant

      $59.95
    Brunette model by the water wearing three tiered tankini swim top for plus size women

    Metallic Navy 3 Tier Tankini Top

      $99.95
    Blonde model wearing black frill sleeve zip up one piece swimsuit

    Black Frill Sleeve One Piece

      $99.95

    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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