GenuTrain A3 centers the patella during joint movement and stimulates the skin receptors and nerve endings in the muscle-tendon transition around the knee to enhance proprioception and decrease pain and swelling. Knobbed silicone insert activates several key joint muscles (vastus medialis, gastrocnemius) while decreasing pain and swelling in the medial compartment; Centers the patella through corrective wire in the knit during joint movement and insert stimulates skin receptors and nerve endings in muscle-tendon transition around knee to enhance proprioception; Promotes proprioception, thus heightening sensory awareness in the knee for increased joint stabilization; Special, non-irritative weave in the critical area behind the knee prevents bunching and pinching; Machine washable makes it easy to care for and cost effective; Can be used to treat: Osteoarthritis, Patellar (knee) subluxation, Chondromalacia, Patellar (knee) dislocation, Anterior knee pain, Knee instability due to general muscular imbalance, Osgood-Schlatter's disease after lateral release surgery, Jumper’s Knee. Machine washable.