I wear a woman's 8 1/2 and the Large is perfect. They're cushy but not hot, cuddly but not sweaty. I like them so much I bought a pair for my mother in law; she wears an 8 women's and the large is good for her too. I also bought the footie version for myself and another backup pair for me. It seems as soon as I really like something they quit making it and I want to have a pair of these in reserve if that should happen. Great gift for granny, teenager or just a regular gal. They're not fashionable they're just wonderful