This sandal ran almost a whole size large in length for me. I usually wear 9.5 in keens and anywhere from a 9 to a 10 in other shoes. I ordered a 9.5 and would have needed at least a 9 for my toes to come close to the edge. Maybe even an 8.  I have between normal and wide feet and felt these were not quite the width of past keens I've owned but still slightly wider than a normal width shoe.  For some reason, the Forest Night color had tighter front straps and a rough edge along the outer part of the sole. It was as if they didn't cut part of the cork as close to the rubber as they did the other pair.  If your feet were wider, this edge could possible rub the sides of your feet. The Cascade/Shitake pair I ordered did NOT have the rough cork edge. I found myself wanting to take these shoes off after an hour of wear - even after figuring out how to adjust the straps correctly. Also, color became splotchy and faded in parts. For the price I paid, I was disappointed in the quality and inconsistencies of the two pairs i tried. Returned both. I still love keens but going to try something else.