I love Mephistos but they are so outrageously expensive that I can't buy them any more.  Naots are every bit as comfortable but half the price.

I have these in black and brown.

My feet swell into potatoes in weather warmer than 70*F, so I can't wear any shoe that goes across my instep.  These are a godsend.  They don't cut my feet in the summer when they swell, the footbed is extremely supportive for my Himalayan arches, and the increase in height between the toe and heel is just right.  They look elegant on the foot, and are so comfortable.  I can wear them all day for sight-seeing; by evening, my feet, while tired, are supported and not painful.

Highly recommended.