I need jerseys that are cut to fit boobs, and even many of the "women's" jerseys aren't cut that way. (I like my jerseys snug, but not shrink-wrap tight). I think I have ONE jersey now that actually fits in all dimensions. In fact, I have a jersey that might be considered indecent if I went outside in it. Unisex jerseys don't fit me: There's too much extra fabric flapping around for my liking, and the elastic starts riding up if I wear one for more than 5 miles. No one needs to see that.
BF's mom, on the other hand, can get away with wearing men's jerseys, and she wears them well. She's smaller than I am, but she's also less curvy.