Insole

Abstract

An insole comprises an insole body of a suitable thickness and softness, which comprises a metatarsal area, an arch area, and a heel area, wherein the metatarsal area has a treading portion, which is concaved and corresponded to a ball of the foot for receiving the ball of foot, and an outer supporting portion, which is extended from the treading portion toward the transverse arch to form an inclined plane and having a thickness which is more than the thickness of the treading portion. Accordingly, the soles of user's feet are adjusted inward by the insole of the present invention which is designed for adjusting the foot posture, lowering the pressure on the normal or valgus feet to keep the guide path of the stress on feet in a relaxed posture. Furthermore, the insole of the present invention is freely put in or out from the shoes, being convenient use.

What is claimed is: 
     
         1 . An insole, comprising:
 an insole body of a suitable thickness and softness, the insole body comprising a metatarsal area, an arch area, and a heel area, wherein the metatarsal area comprises:
 a treading portion, concaved and corresponded to a ball of the user's foot for receiving the ball of foot and having a thickness; and 
 an outer supporting portion, extended outward from the treading portion and having a thickness which is more than the thickness io of the treading portion and less than the thickness of the insole body. 
   
     
     
         2 . The insole according to  claim 1 , wherein the outer supporting portion is smoothly connected to the treading portion to form an inclined plane. 
     
     
         3 . The insole according to  claim 1 , wherein the metatarsal area of is the insole body includes a big toe receiving portion, which is connected to the treading portion and corresponding to the user's big toe, and the big toe receiving portion is concaved downward according to the shape of the user's big toe. 
     
     
         4 . The insole according to  claim 2 , wherein the metatarsal area of the insole body includes a big toe receiving portion, which is connected to the treading portion and corresponding to the user's big toe, and the big toe receiving portion is concaved downward according to the shape of the user's big toe.