Took a chance and went from 9 1/2s to 10s with these shoes. I mention this as it may affect my opinions of fit somewhat, regardless these are some of the most comfortable shoes I've worn in quite some time. I cannot speak to arch support as I have custom insoles and removed the shoe's as soon they were received. Nonetheless, these shoes were incredibly comfortable right out of the box. One last point, I may have just missed it but I was unaware that these shoes had zippers on the side. I will never buy shoes without zippers again.

These are absolutely beautiful except restrictive because it comes up over the ankle and the zipper in the back is hard to zip. It's sort of hard to walk and move. I wanted to wear them to a wedding but thought I would not be able to dance. If you're just planning on standing around looking beautiful - which you definitely will in these shoes then these are for you. The strap across the toes was really painful for me and I wish the buckle there was adjustable but it is just decorative as stated.