The Bikila is named after the Ethiopian marathoner Abebe Bikila, who won the 1960 Olympics unshod. The shoes are essentially a wrap of structured three-millimeter rubber and machine-washable stretch fabric and strap to keep the sock-like FiveFingers affixed to your feet with each little piggy getting its own slot. Testers are impressed with how they adapted to the barefoot experience and to the feeling and freedom they experienced. It made them very aware of their form, and they were careful to ease into using the Bikila, saying it is a useful tool to supplement their training. The sizing is a little tricky and requires some measurements and use of the online chart or in-store fitting.