
Okay, let’s chat about this infamous statistic that says ‘4 out of 5 women wear the wrong bra size.’ You’ve heard it before—it’s been quoted endlessly since the late ’90s by many lingerie retailers. But is it actually true? The answer isn’t as straightforward as you might think. Let’s break it down together.
Where did this 80% number come from?
Apparently, it all started with a tiny study by Dr. Edward Pechter in 1998. And when I say tiny, I mean fewer than 100 participants. Plus, he relied on anecdotal evidence rather than a diverse sample size. Hmm, not exactly convincing, right?
But wait, maybe Dr. Pechter was onto something? A study published in the Journal of Chiropractic & Osteopathy found that 70% of women wore bras that were too small, while another 10% wore bras that were too big.
Why finding the perfect bra fit is tricky
Determining the ‘right’ bra size isn’t as simple as just plugging measurements into a formula. Women’s bodies are complex and dynamic, and what works for one might not work for another. Here’s why:
- Size Variability: Your size can vary depending on the brand or style of bra you’re wearing.
- Breast Shape and Bra Style: Factors like breast shape, band size, and cup size affect how a bra fits. It’s not just about the numbers.
- Lack of Proper Fit Awareness: Many women don’t know what a properly fitted bra should feel like. It’s no wonder finding the perfect fit can feel like searching for a unicorn or the perfect partner.
Common reasons women wear the wrong size
- Limited Size Variety: Most retailers offer sizes ranging from 32A to 38DD. Anything outside this range is considered ‘specialty.’ So, if you fall outside these parameters, good luck finding a fit.
- Stigma Around Larger Sizes: Finding a bra that accommodates a larger bust while providing enough support can be a challenge, often leading to choosing a larger band size instead.
- Outdated Measurement Methods: The “plus 4” method, which tells women to add four inches to their band measurement, often results in an incorrect fit. Despite being debunked, it’s still widely used.
- Inadequate Bra Fitters: Even some trained fitters might not fully understand proper fit and sizing. Everyone’s body is unique, and what works for one might not work for another. Some fitters may prioritise making a sale over finding the right fit for you.
In summary, the “80% of women wear the wrong bra size” statistic is more complex than it seems. While there may be some truth to it, many factors contribute to women ending up in ill-fitting bras—from limited size availability to outdated fitting methods and a lack of knowledgeable fitters.
Interesting facts about bra and breast sizes
Did you know that average bra sizes vary around the world? In Norway, it’s 38D, while in the US, it’s 34DD. This highlights how ‘average’ can differ greatly based on location and demographics.
Another intriguing fact: the average bra size in the US has increased over the years. In 1983, it was a 34B, but by 2013, it had jumped to 34DD. Factors like changes in diets, increasing obesity rates, and more women opting for breast augmentation procedures could be reasons for this shift.
Embrace your uniqueness
There’s no one ‘perfect’ or ‘ideal’ breast size. Preferences vary, and over 20% of women are unhappy with their own breast size. But beauty comes in all shapes and sizes! Bra size isn’t a perfect indicator of actual breast volume or shape. The most important thing is finding a bra that makes you feel comfortable and confident, regardless of what the tag says.

“The brands I stock are made to a standard, not to a price. And there’s a BIG difference between lingerie and underwear” — Annie
For Adelaide’s finest lingerie, sleepwear, and expert bra measurement and fitting, visit:
The Lingerie Company
Shop 36
Mitcham Square Shopping Centre
119 Belair Road
Torrens Park
South Australia 5062
Tel: 0460 28 58 28