Function Provides fresh air intake while helping to reduce heat buildup inside the vehicle. In rain, you can crack the windows to ventilate and help prevent window fogging. Materials Crafted from high quality materials with excellent flexibility. Not easily deformed, bent, or broken. Lets fresh air circulate, keeps rain out, and improves ventilation in all weather. Features Maintains a steady stream of fresh air and reduces interior heat buildup, while partially preventing intrusion from rain, snow, wind and sunlight. Design Does not restrict your view and can noticeably enhance the appearance of your car with a tailored, custom-fit look. Use scenarios - Hot, sunny days: vent the cabin to reduce interior temperature without compromising comfort. - Light rain or mist: crack windows for ventilation while rain is kept out. - All-weather driving: maintain airflow and reduce stuffiness on long trips.