It’s so bad that my fiancée has some bras that say she’s a B cup and others that says she’s a D cup. In order to go bra shopping, you have to actually try them on to find out if they fit.
If I had to try on underwear to see if they fit, I might not bother with underwear at all!
Grade 9- girlfriend at the time was “blessed” so to speak. Learned e women have a much more difficult time finding bras and underwear that “work” than most men do.