Heavy-duty and four-layered: The car windshield cover is made of 4 layers - PEVA aluminum foil, spunlace cotton, composite cotton, soft non-woven lining. Keeps the windshield clean and helps prevent the car's wiper area from filling with leaves and pine needles. Summer and winter protection: Summer - blocks almost 99% of UV rays, which helps lower the temperature in hot and sunny weather. Winter -50C resistant to low temperatures. It can prevent the formation of frost/snow/ice on the windshield in winter and reduce the time for defrosting or snow removal in the morning. Two sizes for most cars: two available sizes fit 99% of vehicles - the standard size (140x90 cm) is suitable for cars and SUVs, and the X large size (145x101 cm) is suitable for SUVs, trucks, minivans. (Please measure your vehicle before purchasing to ensure your car cover fits) Easy to install: simple and convenient to use, no tools required for installation. The side cover is designed to be attached to prevent it from falling off. (Silver side up) Multifunctional: It is not just a windshield cover - it can be used as a camping table mat, a tent sleeping pad, a car mat for pets sitting in a car, and an outdoor mat for crawling.