What is true about PFD sizing?

The correct answer emphasizes the importance of proper sizing for personal flotation devices (PFDs). PFDs are specifically engineered to fit individuals based on their body shape and size to function effectively. A well-fitting PFD will provide the necessary buoyancy and keep the wearer afloat, while an improperly sized one may not work as intended, which could potentially lead to dangerous situations in the water.

Each PFD is typically marked with a weight range or size classification, indicating the appropriate user for that device. A PFD that is too large may not keep a person safely above water, and one that is too small could constrict movement or fail to provide adequate flotation. Ensuring the right fit means considering both the size and the weight of the wearer, which underscores the tailored nature of PFD designs rather than a one-size-fits-all approach. Proper sizing is a critical aspect of boating safety, as it directly impacts the effectiveness of the device in an emergency.