Selected for the ADI Design Index 2020 in the category "Design of materials and technological systems" magis40 is a window with oak internal finish and aluminum external profile. The window has been recognized as having a particular technological and design quality, such as to allow us to define a profile of the wooden leaf at sight very thin, only 40mm thick. From the point of view of thermal performance, magis40 is able to ensure adequate thermal insulation as well as maximize the contribution of natural light inside the environment.