I love Tamarac slippers; I have 2 pairs already. I bought a 7 in a different style and they were a bit snug; so in this style, I bought an 8, yet he can't even get his foot into them.  Perhaps it is just this pair, but the top is much flatter on the pair I received and no one but a very flat footed person could wear them. Forget it if you have a high arch. But they are very well made and I will buy Tamarac slippers again; unfortunately, I will have absolutely no faith in their sizing. They are wonderful slippers; if they fit.