As a male, thanks to an answered question by another male, I was able to order the correct size for me (since these are for women). When my feet are cold, I am cold. Thanks to the Bootie Dance Shoes, my feet stay warm when I am at my computer desk. The opening to inset your feet is a bit tight but insures retention of warmth. The only negative factor is that the booties are a bit wide for my narrow foot..... but I love them!!