Of all the MANY Christmas gifted received by my twin grandsons, age two, their two CITH hats were by far their favorite things!! They fit ALL head sizes...don't know how it works, but I can also wear the hat!! One of the boys wants to sleep in his, and he also likes to wear two hats at a time, and the CITH hat is always one of the two! Now, granted, both boys are crazy about hats, but this is their FAVORITE for over a month now!!! I think their mom is planning a CITH-themed birthday party and these hats will play a major role. Excellent hat!!!!! It  has held up very well with rough handling from two toddler boys, and when it looks a bit squished or lopsided, it is even funnier and is easy to reshape!! LOVE IT!!!