Great bag - thin cut. If your over 6ft go for the extra length. One flaw is the zipper - it leaks cold air and the inner bevels don't prevent the leakage hitch at minus 40 can be very dangerous. Last addition that north face missed was the silk and mesh breath screen to stop your nose being totally exposed.
Cool back up shoes for adventure racers. Be sure to wear them in for a couple of weeks. I wore mine during a couple of the 40km running stages in the Gobi and Atacama deserts whilst my Montrails dried out and they were GREAT! On the really long stretches its advisable to wear socks - looks odd but prevents the shoe from rubbing your skin off. 10 out of 10.