Features lightweight hybrid frame construction of fiberglass composite cores over-injected with an advanced fiber reinforced polymer Innovative design and optimized material utilization of the exoskeleton frame construction make the knee brace even lighter than its predecessor yet provides higher structural strength and support Performs at temperatures as low as -4°F Double-pivoting hinge system incorporates tool-free, fast, easily exchangeable extension stop to help prevent hyper-extension injuries Patented lightweight and highly-ventilated double-wall knee-cup system offers strong impact force dispersion and absorption while ensuring maximum coverage area in all riding positions Ergonomically sculpted knee cup is constructed from a triple segmented polymer for flexibility and adaptivity that is backed with light padding for the ultimate in comfort Knee-cup is secured accurately in place by an innovative integrative mechanical guiding system to allow for multi-directional freedom of movement Channeled padding and mesh zones provide optimized ventilation and airflow Soft comfortable lateral knee padding avoids pressure points Additional space padding and additional pad enable a high adjustability for a personal fit Lightweight single straps on upper frames and buckle system promotes secure fitment of the brace in all riding positions and supports effortless mounting C-Frame strap system holds braces perfectly in position and avoids slipping when riding