barefoot style running

I couldn't play tennis twice a week without great shoes but maybe it is a different for runners:

From the NYTimes:

The primary lesson of the accumulating new science about barefoot-style running, he says, is that “the biomechanics of running are not simple, and generic proclamations” — like claims that all runners will benefit from barefoot-style shoes and running form — “are surely incorrect.”
Dr. Gruber agrees. “I always recommend that runners run the way that is most natural and comfortable for them,” she says. “Each runner runs a certain way for a reason, likely because of the way they were physically built. Unless there is some indication that you should change things, such as repeated injury, do not mess with that plan.”