The Spark Kinetic Knee Sleeve utilizes patent-pending technology to combine the benefits of kinesiology tape and compression to enhance muscle performance and provide support and targeted pressure to sore or injured knees. Its embedded kinesiology tape design enhances compression and support over targeted areas. This compression knee sleeve can be used for running, weightlifting, general exercise, sports and activities, or for reducing muscle or joint pain. It can be worn on either knee. The Spark Kinetic Sleeve is designed to be comfortable, and its moisture-wicking material makes it breathable and cool. Top and bottom grip-track banding keeps this elastic knee support from slipping down or riding up. The Spark Kinetic Knee Sleeve is easy and intuitive to put on and take off. Unlike kinesiology tape, it won't leave sticky residue when removed. This knee sleeve is reusable and washable as well: Just hand wash in cold water and allow to air dry. Size Small: Fits 12? to 14? knee circumference, measured at the center of the knee cap.