High-end articulated knee brace, it has many innovative advantages, such as its 4-point attachment system, frame and ultra-lightweight design (600 grams) as it is made of avional (extremely light aluminium alloy used in the aeronautical industry). Suitable for aquatic use (do not forget to rinse the orthosis with fresh water after use for better durability). It has condylar air cushions for great comfort. Indicated for limitation of range of motion, useful especially in postoperative (flexion / extension), problems of moderate and severe ligament instability of the knee, either damage to the anterior cruciate ligament (ACL) and / or posterior (PCL) or lateral ligaments (LLI / LLE). Also in prevention for the resumption of sport after major knee sprains. Postoperative after meniscus or articular cartilage surgery. It is indicated for athletes who practice their activity intensively or even at a high level. Conceived and designed for extreme sports: Skiing, snowboarding, motocross, mountain biking, etc.