"I bought this for my 3 year old son who is obessed with Toy Story. I ordered him a 3T-4T and it fits perfectly. It has extra room for him to wear clothes underneath in case its chilly. It is made alot nicer than the other Buzz costumes I have seen in stores. I bought the inflatable jet pack for him to wear as well. It really finishes off the costume! He didnt want to take it off! Overall, a really great costume for the price!"