The Axis Pro Knee brace features an industry-first aluminum and carbon fiber frame construction. The aluminum hinge design allows for a low-profile structure, which results in a comfortable, lightweight and rigid brace. Carbon fiber upper and lower cuffs. Adjustable hyper extension lock-outs, allows personalized fitment. DualDefense Patella Guard total tracking knee cup design. Sharkskin neoprene liner. Synthetic leather modular straps. Compression comfort cuff. Full protection at all times. Ultra-lite. Lightweight and durable construction. Perfect FormFit Frame: Lightweight and impact resistant carbon fiber shell with reinforced aluminum monocoque hinge. Provides impact protection and knee stabilization. Tru-Motion 2.0 Anatomically Correct Hinges: