It wasn’t barefoot running that made the Tarahumara great runners, though. (They wore huaraches.) Form is what matters in running. Barefoot running can help you develop great form, but it’s merely a means to an end. If you like running without shoes, great. If you prefer something on your feet, that’s great too.
Eat and Run: My Unlikely Journey to Ultramarathon Greatness by Scott Jurek and Steve Friedman