I read the reviews and even though looking at the size chart it stated that I should wear a L, I purchased an XL to be on the safe side. I should have just ordered a L. It was a bit large but thanks to the adjustable strap in the back I was able to tighten it just a bit. I bought this for use in a Goofy costume so it was alright but if I was using it for my suite I would have returned it for a smaller size.