Human evolution from past and Now still progressed future will be on Evolutional point of view, calcaneous in most specialized organ for supporting Body weight.
So offer optimal balance for the calcaneous

There are two different in foot.
One is supportive function excuted by calcaneous, and the other is propulsive function excuted by arch
The talus is most important control center between the calcaneous and the arch Corrigo insole is functional adaptive for calcaneous / talus /arch correctly