1/8" neoprene sleeve reinforced knee brace. The universal neoprene buttress offers full patellar control for chondromalacia, tendonitis and patella tracking abnormalities. It also can be adjusted to allow for medial, lateral, inferior or superior patella stabilization. The anterior oval compression pad with patella cutout provides additional warmth and compression. Size measurement taken at circumference 6" above mid-patella. Closed Popliteal, Size: Extra Large, 23" - 25.5".