Bamboo on your feet? Yes! In fact, the "woody" plant used to make lumber can also be made into soft, cashmere-like NuBamboo facric that is naturally anti-bacterial (which means less stink) and efficient at moving sweat away from your skin. Combined with Injinji's ingenious toe-sock design that lets your digits spread unencombere and reduces friction between your toes, the Eco-Series Quarter is my go-to sock for long runs.