A Personal Flotation Device (PFD) is a safety equipment designed to keep a person afloat in water. Commonly known as life jackets or life vests, PFDs are made from buoyant materials that help prevent drowning. They come in various types, including inflatable and inherently buoyant designs, and are used in activities like boating, kayaking, and swimming. Wearing a PFD is essential for anyone engaging in water sports or activities, as it provides critical support in emergencies. Many countries have regulations requiring the use of PFDs on boats, ensuring safety for all passengers. Proper fitting and maintenance of a PFD are crucial for its effectiveness.