You have to be able to understand 3D forms to be able to create great-looking and fitting bras. You add four to this measurement if the number is even, five if it's odd — and the resultant number is your band size. It's a peculiar moment of synergy, when culturally we like big breasts and women have suddenly discovered that they have them. It creates a lot of confusion when we're designing breast enlargements. As with all of these things, science lags a long way behind. If you're well nourished during the period when your secondary sexual characteristics develop, you'll reach your potential. There are various other theories posited in the media for this bosom expansion.
Why are British women's breasts getting bigger?
The underband and shoulder straps are modular, so that some parts stretch while others don't, to create an excellent fit.
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Dr Fentiman concurs with Porter's theory. But though a survey found that the average British woman owns 16 bras at any one time and buys four every year, fitting them is a surprisingly tricky activity. There are various other theories posited in the media for this bosom expansion. Yes, there may be other explanations as well.