to support a foot , a special shoe is adapted to receive a flat flexible member having a first fastening means on one end thereof , whereby it may be fastened to a shoe . the shoe has first , second , third and fourth fastening means attached thereto . the second and third fastening means are positioned on opposite sides of the medial plane of the arch of the shoe and are spaced from each other within a range of one - half to four inches ; the first and fourth fastening means being positioned within a range of one - eighth to two inches upwardly from a sole and within a range of one - half to three inches of a heel , whereby they are located lower than the arch of the shoe and within a range from the arch of one - half to three inches . the flat flexible member has a second fastening means on a second side , whereby one of said first and second fastening means may be fastened to a shoe over the arch of the foot and the other fastened to a location on the shoe near the sole adjacent to the heel . the strap between said first fastening means and second fastening means has a length of between three inches and eight inches . the first fastening means is a hook and loop fastening means having an area of between three and six square inches .