A life jacket is a personal flotation device designed to keep a person afloat in water. It is typically made from buoyant materials like foam or inflatable air chambers, allowing individuals to stay above the surface and reduce the risk of drowning. Life jackets come in various sizes and styles, suitable for different activities such as boating, swimming, or fishing. Wearing a life jacket is essential for safety during water-related activities, especially in unpredictable conditions. Many countries have regulations requiring the use of life jackets on boats, and they are often recommended for children and inexperienced swimmers. Proper fitting and maintenance of a life jacket are crucial for its effectiveness.