Eliza is pretty low on the charts for weight and height, but her head circumference has consistently been about in the 50th percentile. (She gets that from her mom and dad.) So while her 3-6 month clothes may be just right on her, the 3-6 month hats are a little too small.
Then it started to slide down...
So instead of fixing the hat for her, we took lots of pictures. And eventually fixed it.