What is most important when selecting the right PFD for a passenger?

When selecting the right Personal Flotation Device (PFD) for a passenger, the most crucial factors are the passenger's body weight and chest size. PFDs are designed to provide adequate buoyancy and ensure that the wearer is properly buoyed in the water. Each PFD has a specified weight range that it is designed to accommodate.

The chest size is also critical as it ensures a proper fit; a PFD that is too loose may not function correctly in an emergency situation, while one that is too tight can be uncomfortable and restrict movement. It is essential that the PFD fits snugly and securely, allowing it to remain on the passenger during an accident or when falling overboard.

In addition to these considerations, while factors such as a passenger's age, swimming ability, and comfort level are important in the overall safety and readiness of the passenger, they do not directly influence the selection of a suitable PFD as much as body weight and chest size do. Age may affect the choice of PFD type, but the specific fit based on weight and chest size is what ensures the PFD's effectiveness in keeping the passenger safe in the water.