SAAB Car Auto Sunshade Polyester Smartcover Sunshade Cover SMARTCOVER is locked, deterring theft to your car. Remove it, ready for its next flight in seconds. Most people don't know that the steering wheel, seats, and dash can easily get to 185 to 195 Fahrenheit. The Sun Shade SilverTech polyester fabric has a silver-polyurethane coating like a space blanket that reflects out the heat. SmartCover is made of top-quality 3 layer composite of woven UV resistant polyester, a layer of microscopic metallic particles and a polyurethane coating. Then it's treated with Pan guard for unmatched water repellancy.