Medically Certified Knee Protection We learned a lot from developing our C-Frame and X-Frame knee braces, and we heard your request for a good knee brace that won’t break the bank. Thanks for pushing us! Not as stiff as the C-Frame or X-Frame, but a darn good chassis in glass-filled nylon for comfort and a Carbon Injected knee for that rigidity which reduces the ACL, Meniscus, and MCL injury risk. The Z-Frame is also CE certified as a medical device and as impact protection. Maybe it’s time to get rid of your knee protectors and get yourself a knee brace? Next step up is the X-Frame for a stiffer chassis and our top-of-the-line cage hinge construction.
