Size 18 Women's Swimwear

    171 products

    Chlorine Resistant Navy & White Dots Underwire One Piece

    Capriosca Swimwear
    $149.95
    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

    Capriosca Swimwear
    $139.95
    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
    Polkadots Navy and White Frill Sleeve One Piece Swimwear

    Navy & White Dots Frill Sleeve One Piece

    Capriosca Swimwear
    $129.95
    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
    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
    Sale

    Midnight Garden Off the Shoulder One Piece

    Capriosca Swimwear
    Sale price $79.95 Regular price $159.95
    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
    Sale
    model wearing black floral high waisted swim pant with matching off the shoulder bikini top

    Frenchy Black High Waist Bikini Bottoms

    Capriosca Swimwear
    Sale price $29.95 Regular price $59.95
    Navy & White Polkadots Underwire Swim Dress Swimwear

    Navy & White Dots Underwire Swim Dress

    Capriosca Swimwear
    $144.95
    Brunette plus size model wears underwire one piece in textured fabric

    Honey Comb Black Underwire One Piece

    Capriosca Swimwear
    $129.95
    navy and white dots retro pant

    Navy & White Dots Ruched Skirted Bikini Bottoms

    Capriosca Swimwear
    $79.95
    navy and white dots crop wrap top

    Navy & White Dots Crop Wrap Bikini Top

    Capriosca Swimwear
    $79.95
    model wearing black and white panelled zip front one piece at the pool

    Acapulco Cap Sleeve One Piece

    Capriosca Swimwear
    $149.95
    blonde model standing against wall wearing a black floral v neck one piece swimsuit

    Frenchy Black V Neck One Piece

    Capriosca Swimwear
    $134.95
    black high waisted chlorine resistant bikini bottom

    Chlorine Resistant Plain Black High Waist Bikini Bottoms

    Capriosca Swimwear
    $59.95
    Blonde model wears navy zip front one piece swimsuit

    Navy Blue Frill Sleeve One Piece

    Capriosca Swimwear
    $99.95
    Sale
    leopard bikini wrap top for a big bust

    Leopard Sustainable Wrap Crop Bikini Top

    Capriosca Swimwear
    Sale price $44.95 Regular price $89.95
    Plus Size Tankini Top

    Black 3 Tier Tankini Top

    Capriosca Swimwear
    from $99.95
    Sale
    model wearing leopard print long sleeve one piece with front zip

    Leopard Sustainable Long Sleeve One Piece

    Capriosca Swimwear
    Sale price $109.95 Regular price $139.95
    model on beach wearing black floral long sleeve one piece bathing suit

    Frenchy Black Long Sleeve One Piece

    Capriosca Swimwear
    $129.95
    model wearing underwire navy and white dots tankini top

    Chlorine Resistant Navy & White Dots Underwire Tankini Top

    Capriosca Swimwear
    $134.95
    black high waisted swim skirt

    Black Skater Swim Skirt

    Capriosca Swimwear
    $54.95
    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
    Brunette model wears plain black long sleeve rash vest with full zip front

    Plain Black Rash Vest Long Sleeve

    Capriosca Swimwear
    $109.95
    Sale

    Sardinia One Shoulder One Piece

    Capriosca Swimwear
    Sale price $67.45 Regular price $134.95
    Sale
    leopard plus size bikini top

    Leopard Sustainable Underwire Bikini Top

    Capriosca Swimwear
    Sale price $44.95 Regular price $89.95
    Brunette model wears textured black retro skirted one piece with wide adjustable straps

    Acapulco Retro Skirted One Piece

    Capriosca Swimwear
    $154.95
    Sale
    blonde plus size women wearing pink boho square neck bikini top

    Amalfi Pink Square Neck Bikini Top

    Capriosca Swimwear
    Sale price $49.95 Regular price $99.95
    plain black triangle bikini top

    Black Triangle Bikini Top

    Curvy Swimwear
    $59.95
    Leopard High Neck Mastectomy One Piece

    Leopard Sustainable Sleeveless Zip Front One Piece

    Capriosca Swimwear
    $129.95
    Plain Black High Waisted Pant Bottom

    Plain Black High Waist Bikini Bottoms

    Capriosca Swimwear
    $59.95
    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
    blonde size 18 women is wearing a short sleeve black rashvest with a functional front zip

    Plain Black Short Sleeve Rash Vest

    Capriosca Swimwear
    $99.95
    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
    Model wearing navy and 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

    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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