"I ordered this costume for my 6 year old son. He weighs around 70lbs so I ordered a 12/14 because many had said the sizes ran small. It fit him well, a little long but nothing we can't work with. The hat is way to small for his head, so I had to purchase another..He loves this costume and wears it everyday, I can hardly get him to take it off. The costume is made better than most. You will get lots of wears out of it. In all... GREAT costume for the price!!!"