This is a pretty sandal with the great orthaheel design that works so well to encourage proper foot alignment.
I have issues with pronation and fallen arches due to posterior tibial tendonitis - so orthaheel shoes work great.
I wear a standard size 8 narrow/medium width.  The 8 in this shoe was at least one whole size to big in length and had a very very wide foot bed.
Unfortunately I couldn't even keep my foot in the shoe it was so wide, so a smaller size still would not have helped that much.