My newest nephew was born March 21, and surprisingly, I had nothing to do with this outfit other than putting it on... Meet Jon Alexander. He's five months old and already a Superman fan!
My 20 month old and I are sitting in front of the computer and when he saw the picture of the baby the first thing he gravitated towards was the "S" socks (his words immediately being "S! S! S!") He recognizes that letter anywhere and says so whenever he sees the Superman Shield. He doesn't do that for any other letter though (even though he knows a few of them.