The Jumper’s Knee Strap is designed to improve patellar tracking and elevation by applying mild pressure on the tendon below the kneecap. This helps reduce the effects caused by frequent running and jumping and provides relief from chondromalacia (irritated kneecap).Tubular insert provides focused, uniform pressure to help guide the patella. Fully adjustable and comfortable for all-day wear.Please Note: This product contains natural rubber latex which may cause allergic reactions. Constructed of a neoprene blend which may cause skin irritations. If rash develops of pain persists, discontinue use and consult a physician.