The WeatherTech 08+ BMW X6 Rear Side Window Deflectors are designed to provide a stylish, aerodynamic look to your vehicle while providing added protection from the elements. The deflectors are constructed from durable, dark smoke acrylic and feature an aerodynamic design that helps reduce wind noise and drag. They are custom-molded to fit your specific vehicle and are easy to install with the included 3M adhesive tape. The deflectors also allow you to crack your windows open to keep the interior of your vehicle fresh while keeping the elements out.