Life jackets are designed to keep people afloat in water and prevent drowning. The manufacturing process of life jackets typically involves cutting the pattern in the nylon, cutting the foam (depending on the model), and finally assembling the pieces by sewing them together. The interior of a life vest is made of plastic foam such as polyvinyl chloride or polyethylene . The outer shell of the life jacket is typically made of a nylon or vinyl material.
There are three different classifications of life jackets: inflatable, inherently buoyant, and hybrid. lnherently buoyant life jackets have the flotation power built-in, while inflatable life jackets need to be filled with air . Hybrid options involve both natural buoyancy and manual inflation.
