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!
I really want a law that requires clothing sizes to include actual measurements. And it’s insane that I would have to specify that these measurements must be accurate, but the clothing industry has made lying about sizes the norm.
There shouldn’t be anything preventing me from figuring out women’s bra sizes with a tape measure aside from the fact that I don’t know them and they probably don’t want a stranger obsessively measuring their boobs.
Men’s pants are sized based on the number of inches around the waist and the inseam. The inseam is stupid because it ignores the height from the waist to the crotch so relaxed fitting jeans will have a shorter inseam than a regular fit. I’m sure it is because it was standardized when higher waisted jeans and overalls and that kind of stuff was popular.
But it doesn’t matter any more because the waist sizes can be off by a few inches anyway. It was literal, then became kind of close. Not as bad as women’s clothing, but it is brand specific depending on how hard they lean into vanity sizing.
Yet another reason why I don’t wear pants.
OP is wrong. Bra size is the ONLY women’s sizing that is related to specific measurements. It can still take a while to find a comfortable fit based on shapes, but the sizes are standardized across good brands.
Starting point to find the size: Measure the rib cage right under the bust. If even, that’s the number; if odd, round up. Measure the largest size around the bust. Subtract underbust from bust measurements. 1” = A, 2” = B, 3=C, 4=D.
It gets confusing from there in the US because instead of going alphabetically, the US just adds a D for every inch after 4 until some arbitrary letter then goes back to the alphabet. Using UK sizes just follows the alphabet and so is very simple.