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New arrivals
Bras
Swimwear
Plus Size
Sportswear
Maternity
Underwear
Lingerie
Shapewear
Mastectomy
Gift Cards
Brands
- View all
- Elomi
  
  Elomi
  Elomi Swim
- Fantasie
  
  Fantasie
  Fantasie Swim
- Freya
  
  Freya
  Freya Active
  Freya Swim
- Glamorise
- Goddess
- Panache
  
  Panache
  Panache Sport
  Panache Swim
- PrimaDonna
  
  PrimaDonna
  PrimaDonna Swim
  PrimaDonna Twist
- Wacoal
- Triumph
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18D Bras & Swimwear

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684 products

Panache
365 Smooth Plunge Bra Honey

Panache

365 Smooth Plunge Bra Honey

Regular price $110.95

~~$0.00~~ Sale price $110.95
Unit price per

+
Panache
365 Smooth Plunge Bra Black

Panache

365 Smooth Plunge Bra Black

Regular price $110.95

~~$0.00~~ Sale price $110.95
Unit price per

+
Panache
365 Smooth T Shirt Bra Honey

Panache

365 Smooth T Shirt Bra Honey

Regular price $110.95

~~$0.00~~ Sale price $110.95
Unit price per

+
Panache
365 Smooth T Shirt Bra Lipstick

Panache

365 Smooth T Shirt Bra Lipstick

Regular price $110.95

~~$0.00~~ Sale price $110.95
Unit price per

+
Panache
365 Smooth T Shirt Bra Black

Panache

365 Smooth T Shirt Bra Black

Regular price $110.95

~~$0.00~~ Sale price $110.95
Unit price per

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Sculptresse
Upbeat Underwired Sports Bra Black Chalk

Sculptresse

Upbeat Underwired Sports Bra Black Chalk

Regular price $103.95

~~$0.00~~ Sale price $103.95
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Panache Sport
Endurance Non Padded Wired Sports Bra Sky Blue

Panache Sport

Endurance Non Padded Wired Sports Bra Sky Blue

Regular price $106.95

~~$0.00~~ Sale price $106.95
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Panache Sport
Power Moulded Sports Bra Black Chalk

Panache Sport

Power Moulded Sports Bra Black Chalk

Regular price $106.95

~~$0.00~~ Sale price $106.95
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PrimaDonna Swimwear
Riyad Full Cup Underwired Bikini Top Turquoise Seas

PrimaDonna Swimwear

Riyad Full Cup Underwired Bikini Top Turquoise Seas

Regular price $178.00

~~$0.00~~ Sale price $178.00
Unit price per

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PrimaDonna
Montara Underwired Full Cup Bra Pink Parfait

PrimaDonna

Montara Underwired Full Cup Bra Pink Parfait

Regular price $132.00

~~$0.00~~ Sale price $132.00
Unit price per

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PrimaDonna Swimwear
Mangalore Full Cup Underwired Bikini Top Jewel Green

PrimaDonna Swimwear

Mangalore Full Cup Underwired Bikini Top Jewel Green

Regular price $153.00

~~$0.00~~ Sale price $153.00
Unit price per

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PrimaDonna Swimwear
Mangalore Full Cup Underwired Control One Piece Jewel Green

PrimaDonna Swimwear

Mangalore Full Cup Underwired Control One Piece Jewel Green

Regular price $296.00

~~$0.00~~ Sale price $296.00
Unit price per

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PrimaDonna Swimwear
Mangalore Underwired Full Cup Tankini Jewel Green

PrimaDonna Swimwear

Mangalore Underwired Full Cup Tankini Jewel Green

Regular price $213.00

~~$0.00~~ Sale price $213.00
Unit price per

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PrimaDonna Swimwear
Mangalore Underwired Padded Balcony Bikini Top Jewel Green

PrimaDonna Swimwear

Mangalore Underwired Padded Balcony Bikini Top Jewel Green

Regular price $162.00

~~$0.00~~ Sale price $162.00
Unit price per

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Sculptresse
Elegance Moulded Spacer Bra Honey

Sculptresse

Elegance Moulded Spacer Bra Honey

Regular price $114.95

~~$0.00~~ Sale price $114.95
Unit price per

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Playtex
Front Close Posture Wire Free Bra Nude

Playtex

Front Close Posture Wire Free Bra Nude

Regular price $59.95

~~$0.00~~ Sale price $59.95
Unit price per

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Playtex
Ultra Light Elegance Underwired Bra Black

Playtex

Ultra Light Elegance Underwired Bra Black

Regular price $59.95

~~$0.00~~ Sale price $59.95
Unit price per

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Playtex
Ultra Light Elegance Underwired Bra Nude

Playtex

Ultra Light Elegance Underwired Bra Nude

Regular price $59.95

~~$0.00~~ Sale price $59.95
Unit price per

+
Playtex
Wire Free Smooth T Shirt Bra Nude

Playtex

Wire Free Smooth T Shirt Bra Nude

Regular price $59.95

~~$0.00~~ Sale price $59.95
Unit price per

+
Playtex
Cross Your Heart Wire Free Bra Beige

Playtex

Cross Your Heart Wire Free Bra Beige

Regular price $54.95

~~$0.00~~ Sale price $54.95
Unit price per

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Amoena
Camilla Soft Wire Free Mastectomy Bra Black Sand

Amoena

Camilla Soft Wire Free Mastectomy Bra Black Sand

Regular price $64.95

~~$0.00~~ Sale price $64.95
Unit price per

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Amoena
Jenna Soft Wire Free Mastectomy Bra Blush

Amoena

Jenna Soft Wire Free Mastectomy Bra Blush

Regular price $44.95

~~$0.00~~ Sale price $44.95
Unit price per

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Amoena
Alina Soft Padded High Apex Soft Mastectomy Bra Light Rose Grey

Amoena

Alina Soft Padded High Apex Soft Mastectomy Bra Light Rose Grey

Regular price $97.95

~~$0.00~~ Sale price $97.95
Unit price per

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Amoena
Jolie Active Mastectomy Bra Black Grey

Amoena

Jolie Active Mastectomy Bra Black Grey

Regular price $84.95

~~$0.00~~ Sale price $84.95
Unit price per

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Amoena
Camilla Soft Padded Bra Black Sand

Amoena

Camilla Soft Padded Bra Black Sand

Regular price $69.95

~~$0.00~~ Sale price $69.95
Unit price per

+
New

Panache
Allure Full Cup Bra Raspberry

Panache

Allure Full Cup Bra Raspberry

Regular price $100.95

~~$0.00~~ Sale price $100.95
Unit price per

+
PrimaDonna Twist
Zipolite Full Cup Bra Black

PrimaDonna Twist

Zipolite Full Cup Bra Black

Regular price $174.00

~~$0.00~~ Sale price $174.00
Unit price per

+
PrimaDonna Twist
Zipolite Half Padded Plunge Bra Black

PrimaDonna Twist

Zipolite Half Padded Plunge Bra Black

Regular price $174.00

~~$0.00~~ Sale price $174.00
Unit price per

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18D Bras & Swimwear

The perfect bra starts with the perfect size. If you know your size is 18D and you are looking for the perfect fit, you'll want to make sure that:

Your 18D bra fits snugly around the b...

View more

18D Bras & Swimwear

The perfect bra starts with the perfect size. If you know your size is 18D and you are looking for the perfect fit, you'll want to make sure that:

Your 18D bra fits snugly around the back and sits evenly on the body from front to back.
Underwires must sit flush against your chest.
Your whole breast is fitting into the cup with NO spillage or gaping.
You should be able to fit your finger under the straps.

If you are unsure of your size, visit our fitting advice page to learn more about your size, or you can contact our fitters for a virtual phone or video fitting. Otherwise, check out our selection of 18D bras and swimwear below. If your purchase is $99 or more you'll get free shipping anywhere in Australia.

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© 2025 Cheeky Nites Pty Ltd (Trading as DeBra’s). All rights reserved.

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Help & info

Contact Us
F.A.Q
Delivery & Shipping
Returns & Exchanges
Privacy Policy
Terms & Conditions

About DeBra’s

About Us
Store Location
In-Store Fittings
Virtual Fittings
Mastectomy Fittings

More from DeBra’s

Blogs
Care Instructions
Fitting Guide
Gift Vouchers
Partners
Reviews

Follow us

Instagram
Facebook
YouTube

+61 (2) 4722 4477

© 2025 Cheeky Nites Pty Ltd (Trading as DeBra’s). All rights reserved.

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