Check the listing for details. Leatt Z-Frame Knee Braces - Large. Color: Black, Condition: Pre-owned. Listed at 260.00 USD. Like new - used a few times______________________________________________________New Leatt Z-Frame Knee Brace Pair - Black - Large We learned a lot from developing our C-Frame and X-Frame knee braces, and we recognize the need for a great knee brace that won't break the bank. Not as stiff as the C-Frame or X-Frame, but a good chassis made from 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 line cage type brace or the C-Frame Pro Carbon knee brace, if you are looking for a single sided hinge.- Injected Composite chassis- Slim hinges for superior bike feel- Aluminium hinge covers for rigidity and endurance- Reduction of forces to limit knee injuries:- ACL, Meniscus and MCL- Certified as medical device:- EU CA014741- USA FDA 10048761- CE tested and certified as impact protection:- Knee EN1621-1- Hyper extension limitations 5º, 10º, 15º and 20º for ACL injury reduction- Low-profile shin bone pad for excellent boot fit- Comfortable, easy-fitting and low-profile strap system- Customized fit with interchangeable hinge padding sizes