An advertising umbrella is a type of umbrella that is often used by businesses to promote their products or services. Here are some general characteristics of rain and sun advertising umbrellas:

Weather-resistant: Advertising umbrellas are designed to be durable and withstand a variety of weather conditions, including both rain and sun. They are typically made from high-quality materials such as nylon or polyester that are water-resistant and provide protection from the sun's UV rays.

Large size: Advertising umbrellas are often larger than regular umbrellas, which makes them ideal for displaying company logos or advertising messages. They may also be designed with a wide canopy that provides ample coverage for one or more people.

Customizable: One of the key characteristics of advertising umbrellas is that they can be customized with a company logo or message. This is often done using screen printing or digital printing techniques, which allow for high-quality and long-lasting graphics.

Portable: Despite their large size, advertising umbrellas are often designed to be portable and easy to transport. They may come with a carrying case or strap that makes them easy to carry around.

Overall, the characteristics of a rain and sun advertising umbrella would make it a useful marketing tool for businesses that want to promote their products or services in a practical and effective way. By providing both rain and sun protection, these umbrellas can be used year-round and can help to increase brand visibility and recognition.