Flex Shade UV Windshield Sunscreens are a high performance, custom patterned, roll-up windshield sun shade. Crafted with 3 layers to help reduce and remove heat away from your vehicle. An outer metalized polyester laminated radiant barrier material reflects damaging UV rays, the middle layer is insulating foam, and a clear Mylar film on the inside helps protect your vehicle interior. Keeps your steering wheel, seats and dashboard cooler. Easy to use, simply roll the shield into place and lower the sun visors. Lightweight and easy to handle. Product Features:Custom patterned for a precise fitHigh performance radiant barrier materialRoll-up designHelps reflect damaging UV rays