Designed to provide comfortable non-hinged knee support for treatment of degenerative knees tendonitis meniscal pain problem patella tracking and patello-femoral pain * Unique four way tensioning system offers support to the patella and knee joint * Open space behind the knee joint allows full range of flexion with no binding or bunching * Open popliteal design allows for better blood flow and is cooler than traditional unhinged braces * Lateral J Insert and XL velcro(2) extension straps provided as accessories *