A lifejacket is an essential safety equipment that is designed to keep you afloat in water if you fall into it. It is also known as a personal flotation device (PFD), buoyancy aid, or life vest. These devices come in various shapes, sizes, and designs, including inflatable, foam-filled, and hybrid types that combine both techniques. They are made of durable materials that can withstand harsh conditions, and many also feature reflective patches or strips to increase visibility and chances of rescue. Whether you are boating, swimming, or engaging in any water activities, wearing a lifejacket can save your life in case of an emergency.