It's a vicious circle really - with so many companies still sticking with the old way of measuring, women aren't being offered their correct band size (a woman measuring 28 inch will be offered a 32 inch bra) so as they are not being offered their correct size, they can't buy their correct size therefore there is no demand for those sizes, and if there is no demand then retailers won't bother to stock those sizes and only sell what they currently selling. And the circle begins.
Currently we are in a system where some retailers/brands measure (and fit) to what you measure and some still stand by the old system of adding four or five (if you measure an odd number) inches onto your size. No wonder you can come away with the wrong size. If you're going into store make sure that the fitter is fitting you not just measuring you. If you tried a pair of trousers on and they were too big you'd try a size down wouldn't you? Your best size bra is the one that fits you. So if you tried a 34C on and the band rode up the back you'd try a 32D on (a 32C would be a whole cup size smaller). The key is to try and arm yourself with as much information as possible about what's a good fit.
Now like all things where there is a system, it may not work for everyone, so far with my personal experience when fitting a bra if the lady measured above a 36FF, the sizing sometimes didn't always ring true. But it was a great starting point to then look at what size they needed. Also below a B cup I found it more personal preference of how a woman wanted to wear her bra, as the less breast size and volume (so weight) you have, the less you have to support, so you may not want your bra to hold your ribcage snugly.
Speaking from having been an array of sizes, (I was a 32DD/30E pre children, hit 32FF at the biggest of my pregnancy, went to a 30D afterwards then settled into a 30DD) and whilst being a 30D (measuring 30 inches around rib cage and 34 inches around fullest part of my boobs) I found that in some brands I could easily wear 32C.
SO what bra size am I?
If you want to start to work out your size in Vanjo lingerie measure around your ribcage – this will indicate your band size, so if you measure a 32, you will wear a 32 inch back.
Then measure around your fullest part of your breast either in a soft bra or crop top, and then subtract the band size measurement from the bust measurement and determine your cup size as follows: (for example if you measure a 32 band and measure 37 inches around the fullest part of your breast. Then the difference is 5 inches so that would give you a DD cup, a 32DD would be your size.
. less than 1 inch = AA cup
. 1 inch = A cup
. 2 inches = B cup
. 3 inches = C cup
. 4 inches = D cup
. 5 inches = DD cup
. 6 inches = E cup (US DDD)
. 7 inches = F cup (US DDDD)
. 8 inches = FF cup
So how are the cup sizes worked out? (the technical bit)
Well when a bra get graded from one size to the next 5cm is added in total around the body, so the projection of the cup increases by 2.5cm (approx 1 inch, this is why this method starts to wavier above a FF cup as 2.5cm is not exactly 1 inch). So a 32DD pair of boobs are projecting out further (by approx 1 inch) than a 32D pair of boobs. So your cup size is related to how it is graded.
CHECKING A BRA SIZE
When a bra get designed and made, a designer will measure the sample against a spec sheet, on that spec sheet is an under-band stretch, and it has to past a certain stretch, therefore measuring 32 around your under-band , a 32 bra depending on the brand/make will fit, yes it may feel tight, but like your trusty pair of jeans that stretch with wear, so will your bra.
If the old style of measuring is working for you, and you're happy with the fit of your bra by all means keep following that way. But if you're not happy with the fit of your bra, you're always adjusting it, or want to throw it off the moment you get home; then try the method of what you measure under-band is what bra size you wear. For whatever reason we are prepared to accept that in some shops we could be say a size 10 or a size 12 but few people are wanting to budge on their bra size.
To show how ludicrous the old system of measuring can be. I put my measurements into bra calculators for them to tell me my size. I measure (approx) under-band 31 inches, over bust 35 inches, I usually aim to wear, depending on the brand a 30DD/30E because i like the band to be tight, or would wear a 32D/32DD if the band is too tight aka can’t breathe level!
http://www.whatsmybrasize.co.uk/ - It’s states I’m a 36AA
http://www.calculator.net/bra-size-calculator.html - It states I’m a 36D
Which is a bit mind blowing really. Now there are some bra sites which get my bra size right, and some which mainly give me a 36D, but I've only shown a couple of sites which are not linked to being able to purchase lingerie from. The idea is not show brands that may or may not get it right, it's not about calling anyone out, this is about being more aware of your own body and bra size and what works for you. Don't worry if your cup size seems to go up, a well fitting bra will alter your silhouette and make you look slimmer, feel more comfortable and make clothes fit better.
It shocks me that on websites such as the above they tell you that wearing the right size bra is important, and sadly some shops don't get it much better either. So whether you are online shopping or store shopping, try on your new size and just check out how it feels. If you don't like how it feels, you've lost nothing in trying something new. But if it changes your world. Your welcome!
Vanjo lingerie will be out in late September.