A life vest is the inflatable jacket stowed under your seat. Locate your life vest.
You are told not to inflate it inside, because a buoyant person cannot get out of a flooding cabin. A life vest has been used in a real evacuation only a handful of times.
1nounlife vestThe inflatable jacket stowed under your seat.
“Nobody could find the life vest during the demonstration.”
life vest is equipment.
Practised in Airport & Flying