J loves his "Monkey Suit" (one piece pajama). He's had others of this style, although I think this print is his favorite. "Mong-kee! Mong-kee! My Mong-kee".
He's going to outgrow this one soon, I think, unfortunately. He is such a big kid: 37 inches and 37 lbs at his 2 year old check up.
This one is a size 4T and from what I can tell, Old Navy only makes this style up to a 5T.