The WeatherTech 12+ BMW X1 Front and Rear Side Window Deflectors - Dark Smoke are an aftermarket upgrade designed to keep the interior of your vehicle cool and comfortable. These side window deflectors are crafted from a dark smoke-tinted acrylic and feature a sleek, aerodynamic design that helps reduce wind noise and cabin turbulence. They allow fresh air to circulate in and out of the vehicle while keeping the interior protected from the elements. The deflectors also help protect your vehicle’s interior from the damaging rays of the sun. Installation is easy and requires no drilling.