A side note, not directly related to the article: According to the most recent bra fitting I've had done, I am a 30D.
Hahahahaha! Admittedly, that fitting was a while ago and some things have changed. But even on the day of the fitting, things were all over the map and I did not wear the same size in all bras or bras by different manufacturers.
At the moment, I own bras in everything from a 30C (an unlined Mimi Holliday comfort bra-- which truly *is* comfortable but being unlined is not suitable to all situations/ seasons) to a 30 DDD and a 32 DD.
Yes, those are supposed "sister" sizes (the last two) but...I tried their "sisters" and nope --- those sizes were not equivalent (or not on me). Note also that most of my bras are by the same manufacturer (Natori) whose cups sizes are clearly smaller than typical. But even within that company's offerings, I have bras that range from 30DD to 30 DDD to 32 DD. Each style is a bit different and fits differently. Thank goodness for the NAS so I could try and compare -- otherwise, ugh.
Anyway, it makes a true joke of S-M-L sports bras!