"All the reviewers that said this costume runs really small are RIGHT! As such, I ordred the size 6 for my toddler who is size 4T and I'm glad I did. It fits him perfectly. This is a well-made costume for the money. It's not a typical cheap halloween costume. The material is soft and stitched well. The colors are great and the scales detail is really nice. The tail is stuffed so it doesn't flop around. Very pleased with my purchase!!"