The car sunshade umbrella with windshield heat insulation is a multifunctional accessory designed to protect your car's interior from the sun's heat and UV rays. It typically consists of a large umbrella-like structure that unfolds to cover the windshield, providing shade and reducing the temperature inside the car. Additionally, it helps to prevent sun damage to the dashboard and upholstery. The windshield heat insulation feature helps to reflect sunlight and heat away from the interior, keeping it cooler and more comfortable. Overall, it offers convenient and effective sun protection for your vehicle.