All You Need to Know About Swimwear for Big Busts

Find the Best Swimwear for Large Bust Sizes

Finding swimwear for big busts can be daunting - if you're over a C cup, the options are often limited.

Here at Curvy Swimwear Australia we stock stylish large bust swimwear with underwire support, shelf bras, moulded cups and wide adjustable shoulder straps, so that the fit of your swimsuit is as supportive as your bra. We offer a wide range of cuts and prints, so you can choose a fashionable and flattering swimsuit that matches your unique style!

Woman with long brown hair wears Leopard print crop wrap top and retro skirted pant

You'll be surprised how many swimsuit styles you can find to fit and support a big bust.

Our Large Bust Swimwear Options

Scroll down to browse all of our fabulous styles, or jump to the style that interests you:

Underwire Bathers for Big Bust

Underwire inserts offer exceptional support for all bust sizes. Swimwear styles with underwire also feature adjustable straps so you can achieve the same support and fit as your bra. 

You'll find underwire styles in all our swimwear categories including bikinis, tankini tops, one pieces, and swim dresses. These styles have been designed to fit specific cup sizes so you can shop for your underwire swimwear the same way you would choose you bra size. 


Woman with long brown hair wears black underwire bikini top and high waisted pant; woman with brown hair wears Sardinia teal floral strapless one piece swimsuit; woman with curly brown hair wears Acapulco black and white underwire tankini top and pants

Underwire swimwear offers the ultimate support for larger cup sizes.

F Cup Swimwear

Shop our selection of underwire F cup swimwear in our textured Honey Comb range, chlorine resistant Navy and White Dots, as well as seasonal prints and colours. This style of F cup size swimwear has extra stomach ruching for a round belly, and F/G underwire bra fitting, and adjustable straps. Shop this style in a tankini top and one piece depending on your preference. 

If you prefer a shelf bra, our plus size swim collection features many multifit styles that comfortably fit and support an F cup bust. You can shop by size with our handy filter function to see which styles will work best for you. 


blonde woman wears Bora Bora floral print underwire one piece swimsuit. Brunette woman wears one shoulder Metallic Deep Teal one piece swimsuit

Shop for F cup swimwear in underwire and shelf bra styles.

G Cup Swimwear

For G cup swimwear shop by your size from our collections of one pieces, tankinis, and bikini tops. Our G cup underwire and shelf bra swimwear is available in a wide range of prints and plains to fit and support your larger cup size.

Our underwire swim bra is a great choice for big breasted plus size swimwear. This style is shaped just like your bra offering superior bust coverage, wide straps and adjustable straps. Contoured cups help to shape the bust. This swim bra is also a great option to wear under a tankini top or one piece if you need extra support.

Other great G cup swimsuits include our 3 tier styles, twist front bandeau, and tie front short sleeve one pieces. The crop wrap top is a fabulous G cup bikini offering a comfortable and cute style to fit and support your fuller bust. 


Woman with blonde hair wears Leopard print twist front bandeau one piece swimsuit. Woman with brown curly hair wears Sardinia teal floral 3 tier one piece swimsuit

Yes, you can wear a strapless swimsuit with a G cup bust. Try a shelf bra style for a great fit and comfortable support.

Zip Up One Pieces

Cap sleeve and long sleeve one pieces have been on trend and sought after for years now. They are a great multifit one piece swimwear alternative to the standard underwire one piece that you might usually shop for. This structured swimsuit style features a built in shelf bra for support and offers room for larger cup sizes up to an F cup. 

The internal shelf bra offers great support with a comfortable elastic band that sits under the bust. The zip at the top allows you to have either a high neck swimsuit or zip it down for a sexier v neck look. Keep your shoulders covered with a cute frill sleeve or a long sleeve so that you don’t get burnt. Shop our frill sleeve swimsuit collection here.

Woman with long red hair wears black long sleeve zip up one piece swimsuit; Brunette woman wears Midnight Garden floral frill sleeve zip up one piece swimsuit

Zip up styles hold everything in place for excellent bust support and coverage.

Plus Size Tankini Tops

Our large range of swimwear for big busts also includes tankini tops. Plus size tankinis with underwire bra offer terrific bra like support. An underwire tankini top is one of the most supportive swimsuit styles as there is no opposing vertical pull like on a one piece. 

If you prefer to go wire-free with your swimwear, our shelf bra tankini tops are excellent for fitting and supporting a big bust. Our 3 tier tankini top is a fantastic style that offers plenty of room for bust sizes up to a G cup as well as offering tummy control and coverage. If you're self conscious about your bust or belly, and want a stylish option that provides support and coverage, this style is well worth trying. 

It is great to have the option to try a few different styles with the shelf bra and underwire bra and see what works best for you, you might be surprised.


 Woman with long brown hair wears Honey Comb navy underwire tankini top and high waisted pant; Woman with slicked back brown hair sits by the pool wearing Frenchy black floral 3 tier tankini top and black pants.

Tankini tops are ideal for larger bust sizes and if your top half is a different size to your bottom.

Sporty Swimwear for Large Busts

Curvy Swimwear also offers a great range of sports swimwear for large busts. Available in chlorine resistant 100% polyester fabric for great performance and durability. Discover pool friendly plus size underwire swimwear in our Navy and White Dots print, available in DD/E and F/G cup fittings in a tankini top and a one piece.

For a modest swim style to fit up to a G cup, look no further than our chlorine resistant wide strap swim dress. This style features a built in one piece with a shelf bra and adjustable straps. A dress overlay skims over the body for stylish coverage and a feminine feel. 


 Three women wear different styles of navy and white polkadot chlorine resistant swimsuits - 3 tier tankini top, wide strap swim dress, underwire tankini top

You can find stylish and supportive chlorine resistant swimwear for swimming and aqua aerobics.

Australia’s largest range of G cup Swimwear is available at Curvy Swimwear. It is great to know that large bust swimwear in Australia is right at your fingertips. A great selection of underwire and non-underwire one pieces, tankinis, bikinis and swim dresses are available online in Australia, New Zealand and globally. 

Read more about our what makes a supportive swimsuit with our blog about shelf bras, underwire, and moulded cups

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