Thanks. Unfortunately they only have XS. She is a Small, she would have loved it! What a great deal. Just checked the shipping to see- total came to $39.95 or something in change. Not so great for Canadians!
I wouldn't let her wear it in September while at WDW, unless there was some strange weather and the temperature dropped.
The Stitch costume is for Halloween. It's cold up here usually, unless it's raining-then it's cold and wet!