The concept of a "bug-out bag" means different things to many people. It is frequently referred to as a "72-hour kit," packed with just the gear and food and water you expect to need for an evacuation of three day's duration. This is fine for many situations, but this kind of short-term planning is not the primary focus of this blog or of my bug-out book.
What I advise instead is a bug-out bag packed with a survival kit that will enable you to escape a catastrophe and function in a remote wild area without outside assistance, whether for just the first 72-hours or much longer. This means carrying everything you need to provide yourself with the essentials of survival: shelter, fire, water and food. The items that go into such a bug-out back have to be chosen carefully and must be the optimum tools for the jobs required of them, because replacements will be unattainable.
Bug-out bags and the contents that go in them will be the subject of many posts in this blog.