Size 18 Women's Swimwear

    200 products
    Ghost mannequin black with white stripes v neck one piece

    Acapulco V Neck One Piece

    Capriosca Swimwear
      $149.95
    Ghost mannequin black polka dot one piece swimsuit

    Mesh Polkadot Short Sleeve One Piece

    Capriosca Swimwear
      $129.95
    Model wearing Chlorine Resistant Plain Black swim Leggings

    Chlorine Resistant Black 3/4 Swim Pant

    Capriosca Swimwear
      $99.95
    Plus size tankini top

    Chlorine Resistant Navy & White Dots 3 Tier Tankini Top

    Capriosca Swimwear
      $149.95
    Back of model standing in a pool wearing a plus size flattering long sleeve rash vest with built in shelf bra

    Jantzen Flora Zip Front Rash Vest

    Jantzen
      $129.95
    Ghost mannequin black textured one shoulder one piece

    Acapulco One Shoulder One Piece

    Capriosca Swimwear
      $139.95
    plain black ruched high waisted pant

    Black Belly Pant Bikini Bottoms

    Capriosca Swimwear
      $59.95
    Ghost mannequin black sleeveless zip front one piece

    Chlorine Resistant Luxe Sport Black Sleeveless Zip Front One Piece

    Capriosca Swimwear
      $139.95
    Model standing next to pool wearing plus size navy boy leg swim pant

    Chlorine Resistant Navy Boyleg Swim Pant

    Capriosca Swimwear
      $69.95
    Curvy model wearing a black one piece bandeau plus size Australia

    Black Flouncy Bandeau One Piece

    Capriosca Swimwear
      $119.95

    Chlorine Resistant Black Zip Front Long Sleeve One Piece

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

    Montego High Waisted Pant

    Capriosca Swimwear
      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

    Capriosca Swimwear
      Sale price $59.95 Regular price $89.95
    Sale
    Model standing by pool wearing navy based floral print flouncy tankini top

    Montego Flouncy Bandeau Tankini Top

    Capriosca Swimwear
      Sale price $89.95 Regular price $109.95
    Sale
    Ghost mannequin of flouncy bandeau swimsuit with removable straps in navy based floral print

    Montego Flouncy Bandeau One Piece

    Capriosca Swimwear
      Sale price $99.95 Regular price $139.95
    Sale
    Brunette plus size model wears navy based floral lace up one piece swimsuit on beach

    Montego Short Sleeve Tie One Piece

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

    Tuscany Long Frill V Neck One Piece

    Capriosca Swimwear
      Sale price $89.95 Regular price $149.95
    Sale
    Blonde model showing side of white and yellow shirred swimsuit

    Tuscany Shirred One Piece

    Capriosca Swimwear
      Sale price $89.95 Regular price $139.95
    Sale
    Blonde model wearing yellow floral v neck one piece

    Tuscany V Neck One Piece

    Capriosca Swimwear
      Sale price $89.95 Regular price $149.95
    Sale
    Blonde model wearing pink floral v neck bikini with high waisted pants

    Seychelles High Waisted Pant

    Capriosca Swimwear
      Sale price $39.95 Regular price $59.95
    Sale
    Blonde model wearing light pink floral bikini top and high waisted pant

    Seychelles V Neck Bikini Top

    Capriosca Swimwear
      Sale price $69.95 Regular price $89.95
    Sale
    Blonde model wearing blush pink floral zip front rash vest

    Seychelles Long Sleeve Rash Vest

    Capriosca Swimwear
      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

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

    Seychelles Frill Sleeve One Piece

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

    Seychelles V Neck One Piece

    Capriosca Swimwear
      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

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

    Chlorine Resistant Navy Wetshirt Short Sleeve Rash Vest

    Capriosca Swimwear
      $119.95
    Blonde model wearing black bikini top and high waisted bottoms

    Black High Rise Bikini Bottoms

    Capriosca Swimwear
      $64.95
    Blonde model wearing black hipster bikini bottoms with triangle bikini top

    Black Hipster Pant Bikini Bottoms

    Capriosca Swimwear
      $64.95

    Jantzen Wild Gathered Surplice

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

    Seychelles Underwire Bandeau One Piece

    Capriosca Swimwear
      Sale price $119.95 Regular price $159.95
    Sale

    Mermaid High Waisted Pant

    Capriosca Swimwear
      Sale price $30.00 Regular price $59.95

    Sunseeker Navy 4 Way Stretch Board Short Bottom

    Sunseeker Swimwear
      $69.95
    Blonde model wearing strapless black one piece swimsuit

    Plain Black Twist Front Bandeau One Piece

    Capriosca Swimwear
      $109.95
    Ghost mannequin black tankini

    Black Chlorine Resistant Tank Tankini Top

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

    Frenchy Black Twist Front Bandeau One Piece

    Capriosca Swimwear
      $129.95
    ghost mannequin image of a black and pink floral tankini top

    Pink Petals Chlorine Resistant Tank Tankini Top

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

    Chlorine Resistant Pink Sleeveless Zip Up One Piece

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

    Luxe Sport Chlorine Resistant Zip Front Tankini Top

    Capriosca Swimwear
      $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

    Capriosca Swimwear
      $149.95

    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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