What is the function of a life jacket?

The primary function of a life jacket is to provide buoyancy and keep a person afloat in water. When a person wearing a life jacket enters the water, the design of the jacket helps to keep the individual's head above water, making it easier to breathe and increasing the chances of survival in emergency situations. This buoyancy is typically achieved through the use of foam or air-filled chambers within the jacket that displace water and create lift.

While life jackets can provide some warmth due to the insulating properties of the materials used, their main purpose is not to keep a person warm but to ensure their safety by preventing drowning. Similarly, life jackets are not designed as flotation devices for gear or to serve as cushions during rough rides; they are specifically made for the safety of individuals in the water. Understanding this critical function is essential for anyone participating in boating activities to ensure effective safety practices are in place.