Adidas Knee Support: An elasticized center and a tight-knit exterior work together to form a centralized ring that fits over the kneecap. Highlights : For all running, athletic, and fitness-related activities, it provides joint support. Panels are sold as a single support, to be worn on the left or right, and are arranged in different knit patterns for optimal support. A snug fit is ensured by thick cuffs on both the top and bottom Composition: 90% Nylon 10% Spande