I am a fan of Vibram Five Fingers running shoes, as I have made clear every so often. I was wearing my trusty Vibrams when I passed the "Haynesworth Test" four years ago. I've worn them as I evolved past an uncomfortable era of Achilles tendon problems into a time of happily injury-free running. Two months ago I was among those saying that a highly publicized court settlement, in which Vibram set aside $3.75 million to compensate people who felt they'd been misled about health benefits of the shoes, showed more about our legal system than it did about this footwear.
The point about these shoes has always been: they're exactly right for some people, and wrong for others. It all depends on running style. If you naturally run with a "forefoot strike"—that is, landing on the front part of your foot, as nearly everyone does when running barefoot—or if you can adjust to run that way, the shoes are great. If you run with a "heel strike," landing on the back of your foot, which is the style that heavily padded modern running shoes encourage and which some people cannot change away from, then finger shoes don't make sense. You'll feel like you're breaking your heels.
But how can you know for sure, without trying? That has been Vibram's challenge all along—or so I know after an out-of-the-blue conversation with the company's U.S. CEO, Mike Gionfriddo, and his associates. (Vibram is based in Italy; its overall CEO is Antonio Dus. Readers with experience in the U.S. military will know the Vibram name in another context, since it produces outersoles for U.S. combat boots.)