This is the second year in a row I've purchased these. I didn't even really need to, the ones from last year would've done, but I wanted a nice fresh pair to wear out and I'll wear the old ones around the house. They are perfect. I don't even need socks with them on the coldest of days. They keep my feet at the perfect temperature always, never cold, never sweat and they look nice. I just love them! But the claims of sizing "down" are correct. Meaning I'm a women's size 6-61/2 and I get the size 5.