CW-X Women&#39;s Insulator Stabilyx Running Tights, Black/Blue, Small 90% Polyster/10% Polyurethane spandex Imported Stabilyx insulated tight provides targeted support for lower back, Hip, Gluteus, IT band, Knee, Calf and Abs/Core areas Insulated support layer regulates body temperature and transports moisture Stabilyx insulated tight provides targeted support for lower back, Hip, Gluteus, IT band, Knee, Calf and Abs/Core areas Insulated support layer regulates body temperature and transports moisture^Insulated support provided by Auto-Sensor temperature-regulating fabirc, regulates body temperature and transports moisture. Targeted support to knees, IT band and major leg muscles,^The supportive conditioning Web technology provides targeted support to specific muscles and joints where it is needed most Experience less muscle fatigue, faster recovery and targeted support^Versatile performance for both outer wear and as a supportive base layer.