"This is probably the nicest costume I have ever purchased for my child, even considering the price. And for once the helmet doesn't include that pitiful elastic band that either breaks or is too loose. The helmet has a front and back and the front and back are connected with velcro. The helmet didn't stay in place very well, but I had forgotten to have my son wear a knit cap with it, this may have helped. I am sure there is a solution to this problem, it is worth figuring out since it is such a nice costume. Also, my son is 48" and the 6-8 fit him perfectly."