One reviewer noted that they run large, which is exactly why I ordered them!  I wear a size 10 shoe and cannot easily find socks that fit comfortably.  These are perfect!  I have to wear an awful lace-up brace for several weeks and need lightweight socks to wear under them.  These are a bit heavier than I had hoped, but are actually nice enough to wear with sneakers after I am out of the brace.
I only gave 4 stars because I did want a lighter weight, and my foot is a bit warn.  Maybe that would happen with any socks under this darned brace.
 But I don't think anyone who buys them, knowing that they are best for a larger shoe/foot size, will be disappointed.