Christopher McDougall's best-selling book "Born to Run" describes his encounter with a tribe that runs long distances wearing only what type of footwear?

• moccasins
  As comfy as slippers and mocassins are, the Tarahumara tribe prefers thin sandals. While many barefoot running shoes have pockets for each toe, some new entries into the market have just two pockets, with only the big toe getting its own area, much like a sandal.
• sandals
  As comfy as slippers and mocassins are, the Tarahumara tribe prefers thin sandals. While many barefoot running shoes have pockets for each toe, some new entries into the market have just two pockets, with only the big toe getting its own area, much like a sandal.
• slippers
  As comfy as slippers and mocassins are, the Tarahumara tribe prefers thin sandals. While many barefoot running shoes have pockets for each toe, some new entries into the market have just two pockets, with only the big toe getting its own area, much like a sandal.