First, an informal statistic:
34B is one of the most popular bra sizes in the country. “That size is always the first to sell out,” the Aerie saleswoman said as she checked for the size among the dozen or so lightly lined options in the store — the only ones left were in beige and black. “I swear, half the people who come in here say they are a 34B,” said a saleswoman at Victoria’s Secret, “and they buy that size whether it fits or not.”
A subsequent test with nine women reporting themselves to be 34Bs suggests that “not” is the most common result:
Some of the women had been professionally sized previously. Some had not. Some were wearing bras that were only a few months old, while others had been wearing the same bra for years, despite the fact that most bras lose their elasticity after six months to a year of regular wear. No one fit every bra. Some people didn’t really fit any of the bras. Bra sizing is so weird.
And that’s just one size. Imagine how complicated this gets when you get beyond 34B.