To easily walk on a soft place such as lawn or on a hard place such as a paved surface by constituting a spike of a pin and a plastic projecting paw arranged in its periphery and permitting the spike pin to freely appear in the tip of the projecting paw and also to be in a coming-out state from the tip.

The spike 3 is constituted of the spike pin 5 and the plastic projecting paw 6 arranged in its periphery and also is constantly energized so as to permit the spike pin 5 to freely appear in the tip 6a of the projecting paw 6 and also to be in the coming-out state from the tip 6a. Therefore, a spike effect is showed in the soft place such as lawn and the ground by the spike pin 5 which is energized in the coming-out state. Besides, the projected spike pin 5 is set in the hard place such as the paved surface and stone and the spike effect is showed by the plastic projecting paw 6 so that it is easy to walk and free from a problem of easy slippage in a rainy day.