Youth Bionic 5S Knee Braces - Black/Red - Innovative hybrid frames are constructed from a flexible composite over-injected with a high performance fiber reinforced polymer which provides optimal structural integrity and support while being ultra-lightweight and adaptive - Slim ergonomic design for riding comfort during dynamic movement - Extremely stable slim-design four-point hinge system perfectly follows the articulation of the knee - Lightweight and highly ventilated knee protector offers strong impact force dispersion and absorption while ensuring maximum coverage area in all riding positions - The frame system reduces the risk of sustaining injuries to the medial and lateral collateral ligament, the anterior and posterior cruciate ligament and the lateral and medial meniscus