Vintage Unbutton My Fly 501 shorts - Size S

I guarantee you do not have a pair of Unbutton My Fly 501 50/50 shorts in your rotation. I have no idea where they came from, if they're a promotional item or a joke (they don't even HAVE a fly!), but I know that you need them. Deadstock, crispy and in great condition, old as-is. Size small.