The main purpose of an umbrella is to provide protection from rain and sun. It consists of a canopy made from water-resistant fabric stretched over a folding frame. When opened, it creates a shield against rain, preventing the person underneath from getting wet. In sunny weather, it can provide shade, helping to prevent sunburn or overheating. Umbrellas have evolved in design and durability over the years and are used globally. Some designs even incorporate features like UV protection or automatic opening mechanisms. Ultimately, an umbrella is a simple yet effective tool for weather protection.