This is a very comfortable and well made boot.  The sizing is true as I where a 12M and this boot is a perfect fit.  It wears very well all day long walking either in the desert or on hard finished surfaces.  I highly recommend this as well as the classic Clark's desert boot.  The classic desert boot wears like a bedroom slipper and doesn't have the support that the Roar boot has.  Both models though are great to wear.