We live in WI, but my husband is from the south, so he hates the cold. My husband loves these! He is not one to wear socks, but goes to grab these almost daily! He wears them for work where he is on his feet for 10hrs and says they make his boots more comfortable.
L size was purchased, he wears a size 16 shoe. They stretch enough to fit his feet, yet I can also steal them and wear them at a size 9. They may stretch, but they bounce back every time! Nice warm soft hug for your feet!
We have 4 pairs right now, but more will be needed in the future as we both try to snag them from the other!