Humans had run barefoot for millennia, and some still preferred doing so in the modern Stone Age of the mid-20th century, when the handful of people running for exercise often wore whatever they happened to have on at the moment of inspiration.
Humans had run barefoot for millennia, and some still preferred doing so in the modern Stone Age of the mid-20th century, when the handful of people running for exercise often wore whatever they happened to have on at the moment of inspiration.