lifejacket

A lifejacket, also known as a life vest or personal flotation device (PFD), is a piece of safety equipment designed to keep a person afloat in water. It is typically worn around the torso and is constructed from buoyant materials like foam or inflatable chambers. Lifejackets are essential for activities such as boating, swimming, and water sports, as well as for emergency situations where an individual might fall into water.

There are various types of lifejackets, each designed for different purposes and user needs. Some are designed for comfort and freedom of movement, while others prioritize maximum buoyancy and protection. Inflatable lifejackets, for instance, can be deflated for easier storage and comfort, but require manual inflation or have an automatic inflation mechanism triggered by water. Foam-filled lifejackets offer constant buoyancy and are often more durable, though they can be bulkier.

The effectiveness of a lifejacket is measured by its buoyancy, which is usually rated in Newtons. Different activities and water conditions may require lifejackets with specific buoyancy ratings to ensure adequate support. Regulations regarding lifejacket use vary by country and by the type of vessel or activity. It is crucial to wear a properly fitting and approved lifejacket at all times when on or near water to prevent drowning.