13 points support of front foot sole, foot arch and heel, design according to the principle of human body structure, help correct foot posture. 2Increase the plantar stressed area, spread the pressure on the front foot and the back heel, relieve foot pain. 3Adopts quality breathable mesh cloth, perspiration absorption, skin-friendly and comfortable. 4Help to correct flatfoot, strephexopodia, good for the recovery of plantar fasciitis. 5High elasticity sponge, good buffer action, reduce foot stress and fatigue.