I have lost all my arches and these give more support than my $300 custom fit orthotics. Yes, they are bulky compared to regular flip flops and are much harder, but the purpose is support and that is exactly what these deliver. Maybe better than my orthotics. We will see how they hold up. Seems to be quality. Will take some time to break in between toes. If you have never worn orthotics before you will have a very difficult time with these.