The Insulator Expert Tights use Auto-Sensor® nanotechnology fabric to maintain a constant comfortable surface temperature in a variety of conditions and the patented Kinesio Support Web for optimum knee and quadriceps support. The Kinesio Support Web bands muscles and ligaments together to stabilize the knees and surrounding muscles. Targeted variable compression facilitates circulation during and after activity, minimizing lactic acid build-up so that you can be active longer and recover faster.