PURPOSE: To improve the circulation of the blood around the sole of the foot, to reduce the fatigue following a walking, and to promote to relieve the fatigue, by composing a walking linear shank with a steel plate and magnetizing it.

CONSTITUTION: A walking linear shank 7 is formed of a half-hard steel plate in a press punching, and magnetized. The walking linear shank 7 is placed between a front insole 3 and an intermediate insole 4, nailed to the heal 1 through holes 7a, and fixed to the front insole by projections 7b. The lines of magnetic force 8 pass near the sole of the foot, and they are varied following a walking to the human body (near the sole of the foot). Thereby, the human body receives an excitement of no feeling, which is effective to reduce and relieve the fatigue.