I don't have a high arch and although they are a bit true to size (a bit too big to wear socks), the walls sag when walking due to changes in shape and feel of the slippers. I know they're usually only worn at home, but the fact that the wall of the shoe becomes part of the sole is a little inconvenient. I don't have this problem with similar moccasins, but they are not very comfortable for me.
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