materials for practical protection This car windscreen frost cover is made from durable, materials to provide reliable protection and easy use on frosty days. Extra thick four layer construction Four layers include PE aluminum film, needle cotton, silk cotton, and non woven material. The ultra thick design is tear resistant and temperature resistant for lasting performance. All weather wind and snow protection The double sided aluminum coating makes the cover waterproof and windproof, meeting winter conditions to keep the front windshield clear on cold snowy days. Portable and collapsible design Soft, foldable material allows easy storage in the car. Lightweight and compact when not in use, providing convenient portability without taking up much space. Practical use scenarios In cold winters, park outdoors and place the cover to prevent frost buildup, reducing defrost time. During snow or freezing rain, use the cover to keep the windshield clear and protect the interior from ice. On long trips or when parking away from shelter, store the cover in the car and deploy it quickly as needed.