I bought this for my son for a halloween costume. I was worried that it would not fit him because he is a small 3 year old (36" and 28 lbs)and i could not find any sizing in the description. I was impressed with the costume and the quality. I had to roll up the sleeves a little bit (which did not look akward or bulky) and the jacket is slightly long, but he looks too darling in it and we got a lot of complements. the bonus was the little toys that come with it...they just attach to the jacket, so he did not have to carry it in hand while carrying his bag of candy. I did not put batteries in the megaphone thing because i read in the reviews that it was annoying, so i did not EVEN show that to my son...he just pretended to shout in it. it's worth the $$--he always wants to play with all that stuff on. the hat is adjustable, which is a plus since I can never find hats that fit his large cranium. good buy.