Suggested Hcpc L1832 L1833 Xxx-large 21 - 24 Medial And Lateral Hinge Stays Provide Excellent Support Enclosed Tubular Donut Buttress Neoprene Coated With 4-way Stretch Nylon Fabric Piping Along Thigh And Calf Areas Of Support To Stop Flexing Tapered In Back For Comfortable Fit Range Of Motin Hyperextension Stops At 170. Easy Removable Hinges For Custom Fitting Indicated For Mild To Moderate Ligament Joint Pain Sprain Strains Of The Knee Ligaments Provides Support. Stabilization And Compression Of The Knee Joint Following Ligament Or Meniscus