The Hg80 Hinged Knee Brace is simply the most comfortable brace you'll wear. It is the ultimate brace for weak or injured knees, as well as for protection after injury. The Triaxial Hinge is the standard by which all other hinged knee braces are judged. It closely simulates the natural tracking of the knee joint. Recommended to help control sublaxating patellas and to help relieve pain associated with Chrondromalacia (irritated kneecap.) The Mueller-exclusive HydraCinn fabric is the moisture-wicking catalyst for maintaining superior support with heat management. The base sleeve is made of antimicrobial fabric that is uniquely breathable, extremely soft to the touch with flatlock seams and features a conforming hourglass design. Inner grip strips complete the anti-sweat/non-slip design to help prevent brace migration and preserve high-performance support.