One of two boxes came yesterday. I can't decide if I'm keeping mine or not. I wear 11 and these fit right at the toe. I'm ok wearing them with thin socks but not sure I can get used to how freaking big these make my feet look.

I'm wearing them while sitting to see how warm my feet get. Big muppet feet might be worth it if they stay nice & toasty.
I'm used to finding shoes that help make them appear smaller, in these I feel like a cartoon character with big footballs for shoes.
DD wears a 6 tennis shoe and said the 7 are tight on her. Luckily, I had quickly placed a 2nd order for 8s and they arrive today for her. I think DD18 will like her 11s because her feet are slightly smaller and she likes this style anyway.
Thanks again OP, this was a great deal & my girls are thrilled!