To provide a sole device as a result of research and development for the purpose of improving and solving various physical problems merely by walking since aging tends to affect the legs and lower back through reduced kinetic momentum and declined muscle force and since less moisture in the intervertebral disk supporting the spine causes deterioration in flexibility and becomes one reason for lower back pain.

Under the circumstances, a device having toe raising shape is used which is made of wood and rubber material and which can be used directly to the foot as a physical part for walking. As a result, the device is applicable to a bare foot as well as a shoe-worn foot. Also, by slightly changing a posture during walking, it contributes to forced muscular movement and stretching effect. At the same time, it makes a posture with the back muscles stretched tight, preventing a bent back and backache and producing healthy body effect. In addition, the device contributes to spinal correction effect linked with a hanging down action, correcting a bent back and a rounded back, and greatly promoting health by using muscles of the entire body.