if you are wanting it for the little man in the picture it will definitely fit. its one of the one size fits all. like the little stocking cap. it has fit my son from the age of 6 months and still does and hes 2.5.
Thanks- I just ask because his head is HUGE. It's 21 1/2" around- only an inch smaller than mine lol. So if it's a one size fits all for kids it might still be questionable...