3M Automotive Window Film Crystalline Series rejects more heat than many dark films without changing the appearance of your vehicle, making it the superior choice for comfort. Rejection of up to 62% of the total solar energy and up to 97% of the heat-producing infrared rays gives you the ultimate in comfort. Available in several VLT's (20%, 40%, 50%, 60%, 70%, 90%*). The Crystalline Series features a proprietary, multilayer optical film nano-technology that combines over 200 layers in a film that is thinner than a Post-Note. The Crystalline Series is designed to enhance your view by allowing visible light into your vehicle while keeping heat out, so you can see clearly through your windows and maintain your vehicle original appearance. The Crystalline Series is a non-metallized window film that won&rsquot interfere with mobile devices, GPS or satellite radio reception.The Crystalline Series reduces up to 77% of the glare from blinding sunlight, allowing you to see better and concentrate more on driving Blocking up to 99% of ultraviolet (UV) light Comprehensive Auto warranty from 3M (Limited Lifetime for original owner).