What is it that you want the support to do? Until you answer that question, the correct knee support is difficult to find. In my experience (many different knee issues, but no medical training) , the neoprene ones offer warmth but previous little else. The full on articulated rigid braces as used after ACL reconstruction seem to actually provide legit support /restriction, but are not much fun to wear and are enormously expensive. If get qualified medical advice before buying anything...