Dynamic Appearance tints your vehicle in the SolarFX IRFX window film. SolarFX IRFX window film utilizes CarbonFX infused with Exclusive S³ IR Technology allowing it to outperform all ceramic window films while maintaining a nice black appearance. Why is blocking Infrared important? Infrared Rays is the burning you feel on your skin when you're in the sun making you less comfortable. Traditional window films, including ceramic window films, do not block Infrared Rays sufficiently, which means you still feel the heat and sun burning your skin. High-performing IR window films block the heat along with the Infrared Rays coming into your vehicle.