A portable umbrella is a lightweight and compact device designed to provide protection from rain and sunlight. Typically made of a fabric canopy supported by a folding frame, it can easily be carried in a bag or backpack. Many portable umbrellas feature automatic opening mechanisms for quick use and come in various sizes and colors. These umbrellas are popular for outdoor activities, such as picnics or beach outings, and are often used in urban settings to shield against unexpected weather. Some models also offer UV protection, making them suitable for sunny days. Brands like Totes and Repel are well-known for their durable portable umbrellas.