New Mueller Hg80 Hinged Knee Brace Maximum Medium few small marks on the barrel. See Pics! Simple assembly Black Charcoal Simple assembly Sleek Design for Optimal Performance Sleeveless tank top provides maximized range of motion Nylon and spandex fabrics deliver a lightweight medium 14” – 16” 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 as well as for protection after an injury Triaxial Hinge closely simulates the natural tracking of the knee joint Sizing is determined by measuring around your knee from the center of the kneecap