This is my second pair of Miz Mooz shoes and so far both pairs have absolutely no arch support.  What I like about the brand is that it seems to run between a regular and a wide width which fits my feet perfect.  But the lack of arch support made this shoe too uncomfortable.  I used arch support inserts on my other pair of Miz Mooz and that seemed ok but those are flats.  I think this heeled version may not work so well.  Also I noticed that my pinky toes felt a little pinched but there was plenty of room for my big toe.  However, the awful chemical smell of the shoes made me not want to try them on at all.