Really nice and soft socks.  They are the thin sort of socks, but the weave is fairly thick for that & cushy - if that makes any sense.  The only problem I have is that I bought them to wear to dance classes with my jazz shoes, so the fit is sort of awkward.  They bunch up outside my shoes, because I wear my dance shoes very snug.  I wear a size 8 or 8 1/2 shoe, so medium should have been fine.  I do have narrow feet though.  Next time I will buy small.