I bought these in blue for my fianc for Christmas to match the Forever Lazy onesie, kind of as a joke, and he loved them both. I like the house cold and he doesn't so now he's all set for winter! He said they are very comfortable. He wears a 10 to 10.5 shoe. I bought him the 9.5 to 10.5 and he said they run a little big and that's with his socks on. He still likes them though.