I am living in a place with freezing floors; in the beginning of the fall I literally got injuries from the cold on my feet (I have not the best circulation in my extremities even though I try to wim hof sometimes). Anyway now my feet are cozy and warm in my freezing house! Ok also I did return them for a bigger size as I want to also have the option to wear socks in them, so maybe choose a size bigger than you think.