The Mueller Sports Medicine Green Self-Adjusting Hinged Knee Brace provides reliable support and pain relief for arthritis, sprains, and minor knee instabilities. With an adjustable sleeve design, it fits comfortably on either leg, staying secure during activity, while the breathable mesh and double-layer liner offer all-day comfort. Made from eco-friendly materials, including a recycled plastic liner and 73% recycled spandex binding, it fits most adults (13"-21"). Trusted for over 60 years, Mueller Sports Medicine is dedicated to helping you heal, reduce pain, and elevate your performance.