[koaku]

emmmmmmmmmmm...ok WHO IS WEIRD NOW??????? Captain or NanteNa o_O ? lol

In the same way The Nike+iPod Sports Kit
Its a device which measures and records the distance and pace of a walk or run. The Nike+iPod consists of a small accelerometer attached to or embedded in a shoe, which communicates with a receiver plugged into an iPod nano. iTunes software can be used to view the walk or run history

(By Wiki.)

The shoes is entirely manufactured with recyclable items.