These are items from a list on the linked site. I included some of the optional items.
A bug-out bag or BOB is a portable kit that normally contains the items one would require to survive for 72 hours when evacuating from a disaster, although some kits are designed to last longer periods. Other names for such a bag are a 72-hour kit, battle box, grab bag, go bag, GOOD bag (get out of Dodge), INCH bag (I'm never coming home), personal emergency relocation kit (PERK), or quick run bag (QRB).
The focus is on evacuation, rather than long-term survival.
In addition to allowing one to survive a disaster evacuation, a bug-out bag may also be used when sheltering in place as a response to emergencies such as blackouts, house fires, tornadoes, and other severe natural disasters.
(Wikipedia)
