The only thing I don't like about this is that the zipper does not go down low enough.  So I added a second zipper.  Now it's fine. it might also have been better if they put on one of those double-pull zippers like you find on good quality ski jackets and such, so you can open it from the bottom or the top... you know, so you don't have to take EVERYTHING off. Otherwise it's good, nice and light, thin material, just enough for wearing under a mascot-style costume.

I might suggest getting one size larger than you think you need.  I bought the recommended size from the chart and it's almost a little too tight.  Guess we'll see how much it changes over time.