I currently own a similar pair of this shoe in black so I thought they would fit the same.  There is more shoe material in the upper arch area of my shoe so when I ordered these I thought they would fit the same.  I am a 5 narrow and currently own a 6.  These shoes in a 6 were over an inch bigger in the back and they wobbled around the arch area.  They shoe was a very nice shoe but was too large for my narrow foot.