Side windows are the vertical glass panels located on the sides of a vehicle. They allow passengers to see outside while providing ventilation and light inside the cabin. Typically made of tempered glass for safety, side windows can be manually or electronically operated to open and close. In addition to enhancing visibility, side windows contribute to the overall design of a vehicle. They can come in various shapes and sizes, depending on the model. Many modern vehicles also feature tinted side windows, which help reduce glare and protect passengers from harmful UV rays.