Seems to be good quality, nice range of colors for a great price.  They hit about 1"-2" over the knee and can be folded down to be a knee sock.  Not as "high-thigh" as some of my socks but they do the trick under longer skirts with boots.  The knit is not overly bulky that they look "casual" if a knee pops out yet softly detailed enough that they are interesting.  Only worn this season and seem to be holding up fine for the wears so far.