"This is by far the best dragon costume out there and what a great price. I purchased a size 4-6 for my 3 year old (my son is about 41 inches tall) and it fit him perfectly. If he was a little bit taller it might have been too small. He already wore it to Disneyland to go tricker treating and received sooo many compliments (the scales, tail, wings and head piece are adorable). I would recommend this costume to anyone!!!"