A personal flotation device is a flotating device in the form of a vest that is donned and fastened to a user to prevent the wearer from drowning in the water or sea.
The life jacket will keep the wearer afloat with his/her head and mouth above the surface.
The simplest and least buoyant type of life jacket comes in the form of nylon-lined foam vest, and with silver reflective band. In case the person is drowned in water, the rescuer can see him clearly.
For purpose of life saving, the life jacket is equipped with the whistle and an orange string.