Size 18 Women's Swimwear

    176 products
    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 Swimwear
    $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
    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 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
    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
    Brunette model wearing tropical white swim bikini bottoms

    Bora Bora White High Waisted Pant

    Capriosca Swimwear
    $69.95
    Blonde model wearing white floral wrap bikini top and matching high waisted pant

    Bora Bora White Wrap Crop Bikini Top

    Capriosca Swimwear
    $89.95
    brunette plus size model wearing full coverage one piece swimsuit with frill sleeves and front zip

    Bora Bora White Frill Sleeve One Piece

    Capriosca Swimwear
    $134.95
    Brunette plus size woman wearing tropical 3 tier ruffle one piece

    Bora Bora White 3 Tier One Piece

    Capriosca Swimwear
    $144.95
    Blonde model wearing a black crossover front one piece swimsuit

    Black Chlorine Resistant Crossover One Piece

    Capriosca Swimwear
    $134.95
    Brunette model wears flouncy black tankini

    Acapulco Flouncy Bandeau Tankini Top

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

    Calypso High Waisted Pant

    Capriosca Swimwear
    $59.95
    Brunette plus size model wears turquoise blue low neck tankini top

    Calypso Cross Front Swing Tankini Top

    Capriosca Swimwear
    $139.95
    Brunette plus size model wears blue long sleeve rashie with full front zip

    Calypso Long Sleeve Rash Vest

    Capriosca Swimwear
    $109.95

    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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