I went to
http://www.so-sensuelle.fr and looked up the bra sizes. Yes, they are in centimeters.
They have five band sizes--90 to 110 in 5-cm increments--and four cup sizes--C through F.
I also checked out
http://www.koniakow.com, which is a site from Poland that specializes in hand-made lace mentionables. (If I owned a hand-made lace bra and was of the shape to need a bra in the first place, I'd wear it on the outside of my clothes. They are very pretty.) Their bras run in 70, 75 and 80 cm band, and A through E cup. Either the Poles measure women differently or there are some seriously small women in Poland. (From the pictures, they have no shortage of seriously cute women in Poland...)
Okay, I found a breakout of how this shit works. The UK and US use the same sizes, and then it gets fucking weird...
read: US/UK -- Europe -- Italy -- France
32 -- 70 -- 1 -- 85
34 -- 75 -- 2 -- 90
36 -- 80 -- 3 -- 95
38 -- 85 -- 4 -- 100
40 -- 90 -- 5 -- 105
It would only be horrifying to be an 86.5 if you had grown up around inches, like we did. If you were a French woman, you'd walk into the lingerie shop, buy your "100" bra and think nothing of it. Or would you buy a 105? Probably the latter--a 100 would dig in. Do they make custom bras? If not, WHY not? Does anyone actually fit into their bra?