I know there have been jokes about what part of the pants they choose to cut and put into game used pants cards, but this is a little goofy.
It seems as though someone took the time to custom make a custom card of Jay Bruce using his underwear... at least I am assume they are his underwear. Or he could be cutting up Hanes tighty whiteys and gluing them onto cards.
Maybe you are a Phillies fan and would prefer Ryan Howard's drawers.
Or.... Joe Mauer's drawers...
I guess everyone in baseball is a briefs kinda guy.