Zero is essentially nothing, but the Xero Shoes, which were invented by Boulder, Colo. Resident Steven Sashen, are just slighting nothing more than nothing. These feature no laces, no upper at the toes and offer just a 6mm thin layer that protects the feet from the ground. It is like running barefoot but still having a layer between the foot and the ground.
Sashen reportedly based his designs on shoes worn by the Tarahumara, Native Americans who were renowned for their long distance running. The Tarahumara wore huaraches – a type of sandal that was likely made of a leather weave – but Sashen’s modern take features a rubber sole. It won’t add much cushion but it will be enough to keep your feet off the dirt. Video after the jump