To improve the bow-legs deformation and mitigate the gonalgia, hallux valgus and fatigue.

This footwear supports a wearer to smoothly and appropriately move the gravity center when walking. This footwear allows the elderly, especially the middle and elderly to use the knee so as to, even if walking, prevent the bow legs, the gonalgia and the fatigue. Even if a person wearing shoes with high heels walks with the knees bent, the gravity center is positioned in the heels, his/her legs are thin, but the knees are deformed and the shoulders become stooped. This footwear has a heel attached to the narrow heel and the first part of the sole to raise the tiptoes from the ground, when the wearer takes a first step with the heels at a count one and two and shifts the gravity center frontward at the count three and four, the knees are slightly bent without applying the gravity center of the body to the thumb, thus preventing the hallux valgus.