November Baby Shower

I have a baby shower to go to mid November, it’s already cold where I live and it’ll get colder I’m sure by then. Can you give me suggestions on what to wear? It is not being held at a House, they rented a place for it and it is women only. I asked if there was a dress code but she said to wear whatever I’m comfortable in lol but i don’t want to look like a bum if everyone else is going to go all out. Suggestions please if you have pics that’d be great!