Mine is in a large plastic tub, but because of the weight and size, I have made a smaller one to supplement it in a backpack. My concern is in having to leave, and having insufficient time to drag the kit out. Two scenarios where this is feasible are forest fire (unlikely) where I have to head out on foot because the roads are blocked in some manner, or earthquake (socal - who knows) and the tubs location in the garage is compromised by some structural damage.