A new version of this pattern was published March 7, 2015. If you have the (c)2008 pattern, please get the corrected download and save yourself some heartache - the new pattern is much improved with both corrections of errata and improved descriptions of techniques.
This pattern is great if you have high arches and narrow ankles but strong (i.e. big!) calves. It cinches in around the ankle and then loosens up - no sliding down of your socks and no tourniquets around your calves. The reverse stockinette sole provides you with a smooth walking surface, great for those of you who dislike walking on purl bumps. The finished sock looks a bit odd until you put it on!