Lady's elastic fabric has different elastic properties lengthwise and widthwise. The rate of tension decay of each elastic fabric depends mainly on there properties, as well as the amount and direction of stretch applied to the fabric. For clinical treatment, it is important to maintain the pressure on the affected area, within a specified range according to instructions from doctors or therapists. The deterioration of tension in the elastic fabrics affects the clinical effectiveness of pressure garments.http://www.gohtex.com/lady-s-c....loth/lady-s-elastic-