A bug out bag, also known as a 72-hour kit or emergency evacuation kit, is a portable collection of supplies and tools that can help you survive for a few days in the event of an emergency. It's called a bug out bag because it's designed to help you "bug out" or evacuate quickly and safely from a disaster or crisis.
There are many different types of emergencies that could necessitate the use of a bug out bag, such as natural disasters (e.g. hurricanes, earthquakes, tornadoes), man-made disasters (e.g. terrorist attacks, civil unrest), or personal emergencies (e.g. car breakdown, injury). Regardless of the specific type of emergency, a bug out bag can provide you with the essential supplies and tools you need to stay safe and comfortable until you can reach a more secure location or until help arrives.