What is crucial to ensure a proper fit of a PFD?

A personal flotation device (PFD) is essential for safety while boating, and the correct fit is crucial for its effectiveness. A snug fit means that the PFD is tight enough to stay on the wearer in the event of a fall into the water, but not so tight that it restricts movement or breathing. When a PFD fits snugly, it helps to keep the device properly positioned on the body, which aids in buoyancy and keeps the wearer's head above water.

In contrast, if a PFD hangs loosely, it may slip off in the water, rendering it useless when it's most needed. A bright color is beneficial for visibility but does not impact the fit or function in the same way. While adjustability is important for achieving the correct fit, there should be reasonable limits to ensure that the PFD does not become overly loose or lose its effectiveness during use. Therefore, the emphasis on a snug fit is key to ensuring safety while boating.