Check the listing for details. MOBIUS X8 Knee Brace Mobius Knee Protection. Condition: New with tags. Listed at 434.95 USD. X8 Knee Brace The most comfortable brace ever designed. Lightweight, PM glass-filled nylon shell conforms to your leg shape creating 360 Degree of protection that won't rotate or slip. The Continuous Cable Routing System (CCRS) adjusts the fit with a simple turn of the locking CNC-forged 6061-T6 anodized aluminum dial; the Figure-8 cable and behind-the-knee adjustment pad greatly strengthen the joint, yet work as freely as your body's own ligament system (patent pending). Overlapping patella area with zero degree CNC-forged 6061-T6 anodized aluminum stop leaves no gap exposed regardless of how far the knee is bent. Plush-molded EVA foam and impact-absorbing rubber internal padding CNC-forged 6061-T6 anodized-aluminum hinge plates California Customers: WARNING: This product may contain chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov