my son is 3 and i wanted him to have this outfit because i do a star wars theme every year for him but when i got this costume it wasn't able to fit over his head i had to cut it and then sew it back up and add another piece of velcro to it just so that it could get over his head. i would recomend you only buying it if your child is between the ages of 1 or 2 not any older and if they have a big head don't even think about it.