An exuberant waterproof survival backpack will protect you, keep you alive and, and will keep an eye on your fundamental survival needs. You are most likely acquainted with the rule of 3 (in some cases known as the rule of fours) that characterizes the greatest measure of time you can get by without the accompanying basics:

1.    Air: 3 minutes
2.    Shelter: 3 hours (when there are outrageous conditions around you)
3.    Water: 3 days
4.    Food: 3 weeks

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