This is a big improvement in fit over the Commuter II.  It fits very similar to the other Keen sandals I have owned.  The Commuter II was EXTREMELY NARROW, and I had to return them.  This shoe is very stable and has a nice stiff platform when clipped in.  The top strap nearest the ankle is not wide, but is comfortable, even when pulling upwards on the pedals.  It is comfortable with thin cycling socks, or barefoot.  If you are not being competitive, but want ventilation, as well as versatility at the end of a ride, this is the shoe for you.