The knit looks good, like a heavy sweater with a tight weave.  The color is truly a charcoal gray, as advertised.  They come up above the knee when bagged, but can cover my whole leg (and I'm 5'10") if you stretch them.  Only complaint is that the tension band to hold them up isn't too strong and they require pulling up quite a bit.  But hey, don't all leg warmers?