12DD
12DD Bra Size – Comfort, Support & Style
Understanding the 12DD Bra Size
The 12DD bra size is a common Australian size that suits many women with a medium band size and a fuller bust. Here's how it breaks down:
- Band Size (12): Refers to the measurement around your ribcage, just under your bust. In Australian sizing, a size 12 band fits a ribcage measurement of approximately 75–80 cm.
- Cup Size (DD): Indicates the volume of the bust. DD means your breast size is five cup sizes larger than the band (A, B, C, D, then DD).
This combination is ideal for curvy women who need extra support without compromising on everyday comfort.
International Size Equivalents
| Region | Size Equivalent |
|---|---|
| Australia (AU) | 12DD |
| United Kingdom (UK) | 34DD |
| United States (US) | 34DD |
| Europe (EU) | 75E |
| France (FR) | 90E |
How to Measure Your Bra Size
Using a tape measure, you can determine your bra size at home:
1. Measure Your Band Size:
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Wrap the tape measure snugly under your bust to get your ribcage measurement.
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Ensure it sits flat and level.
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Round to the nearest whole number.
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If it’s 75–80 cm, you’re likely a band size 12 (AU).
2. Measure Your Bust Size:
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Wrap the tape around the fullest part of your bust.
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Don’t pull tight – keep it comfortable.
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Subtract the band measurement from this number to determine your cup size.
Refer to our full Size Chart for more help.
Sister Sizes for 12DD
Sister sizes offer alternative fits with similar cup volume:
Trying a sister size can help you find the right fit, especially if you're between sizes.
Best Bra Styles for 12DD
Women with a 12DD bust benefit from styles that balance support, coverage, and comfort. We recommend:
- Lightly Padded Bras: Enhance shape without bulk.
- Wireless & Wirefree Bras: Comfortable for everyday wear.
- Seamless Bras: Perfect under fitted clothes.
- Sports Bras: Ideal for active support.
- Full Coverage & Balcony Styles: Lift and secure.
Featured Brands That Carry 12DD
We proudly stock a wide range of comfortable lingerie brands that cater to the 12DD cup size, including:
- Calvin Klein – Modern, minimal comfort
- Wacoal – Structured support for fuller busts
- Triumph – Everyday wear with timeless reliability
- Panache – Fuller bust specialist
- Berlei – Known for sports bras and wirefree comfort
- Freya – Youthful, supportive styles
- Fantasie – Elegant and comfortable
Each brand has been handpicked for its quality, fit, and ability to meet a variety of comfort preferences.
Feel Supported, Feel Empowered
Your bra isn’t just a piece in your lingerie drawer – it’s the foundation of your day. Whether it’s for special occasions, a supportive sports bra for the gym, or your go-to wirefree option, our collection is designed to support every need.
Ready to elevate your fit? Shop Now and explore our range of sizes from expert bra-fitting favourites.
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FAQs
What is the difference between 12D and 12DD?
The cup size in a 12DD is larger than a 12D. If your current bra feels tight across the bust, 12DD may be the better fit.
Can I wear a 14D if 12DD is unavailable?
Yes, 14D is a sister size to 12DD and can work well if you need a slightly looser band size.
What bra styles are best for 12DD?
Lightly padded, seamless, or cotton wirefree bra styles are perfect for day-to-day wear.
Do you offer bra fittings?
Absolutely. Visit one of our store locations for expert bra-fitting service and personalised customer care.
How can I check if my bra fits properly?
The band should be snug, the cups should fully contain your bust, and straps should stay comfortably in place. Need help? Our fitting guide is here for you.