40B at the moment, but I hope to lose about 65 more pounds before starting HRT, so in theory that'll probably go down to a 38 or 36, then I'll probably lose another size from muscle changes. As for the B cup, mostly fat so that'll come down too, but not too flat... I have gynecomastia bumps... Got a couple XL sports bras, but I don't wear them out of the house yet, got them to hide HRT, but it looks like that won't be happening till August or September, (first appointment in late August), if I meet my goals for weight loss those bras won't fit anymore by then.