brancher pointed out this fat centaur t-shirt. (Thanks!) It goes up to size 3X in "unisex," measuring 28" armpit-to-armpit when laid flat. That's generous enough to fit a 56" chest. The length is a bit over 33", which might lead to a bit of belly-peek in those with long torsos. (Unless you're in one of those situations where you *want* a little bit of peekage!) Kudos to the sellers for *having* measurements; a lot of clothiers don't.