The Swiss air-cushion shoe from kybun (kyBoot) | walk-on-air
In kybun shoes you walk on a soft, supple air cushion. You feel light as a feather and have a tremendous sense of pleasure. You will be a convert from the first step, and every further step you take will persuade you more.
After inventing the MBT shoe, Karl Müller went on to create the kybun shoe.