Barefoot

Barefoot is a modality of runnig that  you have to run without shoes.
It is very use between the athletes, that's because the humans are designed for runnig barefooted.
then you can build the muscules of your foot.
But a person who has never run without shoes can't do it immediately. You should start bit by bit.

 

If you like to run and the challenge you should try it.