These socks help keep me warm and the top does not dig into my legs in an uncomfortable way, which is the problem I tend to have with knee high socks.  They fit well and came up to just below my knees.  The only thing I disliked about these socks is the non-skid bottom.  It's a nice feature, however when I walk on hard floors, they make a loud, sticking sound.  I still like them as is, but without the non-skid bottom these would be perfect.