A PFD (personal flotation device) flotation vest is a type of life jacket that is designed to keep the wearer afloat in the water. It is typically worn around the torso and is secured with straps or buckles.

PFD flotation vests are typically made of durable materials such as nylon or neoprene and are designed to withstand the wear and tear of being worn in the water. They are also typically designed to be comfortable and easy to wear, with adjustable straps and other features that allow the vest to be customized to the wearer's size and shape.

PFD flotation vests are typically used for recreational water activities, such as boating, fishing, and swimming, and are often required by law to be worn on boats and other watercraft. They are also commonly used by rescue professionals, such as lifeguards and search and rescue teams, as a means of flotation and buoyancy.

To ensure the best performance and safety of a PDF flotation vest, it is important to follow the manufacturer's instructions for use and maintenance, and to regularly inspect the vest for signs of wear or damage. It is also important to wear the vest properly and to adjust it to fit correctly to ensure that it provides the necessary level of flotation and buoyancy.