The heating knee pad will store the energy generated during exercise and release it as heat to help soothe muscles once the workout is complete. Made of 'electro-thermal isolation yarn', the concept device will absorb the heat generated by the body during exercise. A coil and magnet electricity generator will store the heat, and then release it into the pad after the workout-creating a soothing warmth. The knee pad's energy storing feature can be switched off or on, and the...