Uses a Continuous Cable Routing System (CCRS) that externally reinforces all crucial ligaments of the knee Cable routes around the knee joint through the tendon back plate When extreme force is applied to the knee joint, the cable progressively tightens to provide support and prevent excessive rotation and bending CCRS also grips and squeezes the brace shells gripping the tibia and femur to provide additional support to prevent any additional excessive movement of the knee joint Brace outer shell is a lightweight PIM glass-filled nylon shell that conforms to the shape of the leg to provide natural freedom of movement without binding Design also prevents the brace from rotating or slipping out of position CCRS system features a locking, CNC forged 6061 T-6 aluminum dial for adjusting the tension of the cable Plush molded EVA foam and impact-absorbing rubber internal liner CNC forged 6061 T-6 aluminum hinge plates Overlapping patella area with CNC forged 6061 T-6 aluminum stops leaves no gap exposed, regardless of how far the knee is bent Hook-and-loop attachment straps with numbered pull tabs provide a proper custom fit and easy on/off of the brace