The undisputed experts when it comes to key survival gear? The rangers who save hikers who go astray. Jeff Webb, a search-and-rescue ranger at Yosemite National Park, has worked on more than 200 rescue missions. He's also seen action in Big Bend, Yellowstone, Canyonlands, Joshua Tree, and Rocky Mountain National Parks. With his advice, our editors put together this ultimate survival kit for hikers.
Every survival kit and emergency preparedness plan should include emergency blankets and lights. Mylar blankets effectively reflect body heat, and can keep you warm throughout a cold night. Their extreme lightweight and compact size make them an ideal part of a survival kit. To ensure you have adequate light in the event of a power failure, chemical snap lights are a convenient solution that doesn’t rely on batteries. Many snap lights last for 12 hours or more, and have a five year shelf life, so you know they’ll be there for you when you need them.
I’ll take a person with common sense over one who has a lot of survival knowledge and skills. There is too much emphasis out there on wilderness survival. That will be a rarely needed skill set. More common will be urban survival, and suburban survival. Age and physical condition will have more to do with being able to survive a long-term disaster. As a senior I have difficulty convincing myself and my peers that hard core survival skills will be possible or necessary. We can only prepare for those things we feel we have any chance to survive anyway.
This group stresses being able to stay alive for indefinite periods in life-threatening wilderness scenarios, including plane crashes, shipwrecks, and being lost in the woods. Concerns are: thirst, hunger, climate, terrain, health, stress, and fear. The rule of 3 is often emphasized as common practice for wilderness survival. The rule states that a human can survive: 3 minutes without air, 3 hours without shelter, 3 days without water, 3 weeks without food. 
I.N.C.H. pack: I'm Never Coming Home pack. (It is another name for a Bug Out Bag. often used by those trying to show that they are experts in the preparedness field.) A pack containing everything needed to walk out into the woods and never return to society. It is a heavy pack loaded with the gear needed to accomplish any wilderness task, from building shelter to gaining food, designed to allow someone to survive indefinitely in the woods. This requires skills as well as proper selection of equipment, as one can only carry so much. For example, instead of carrying food, one carries seeds, steel traps, a longbow, reel spinners and other fishing gear.
These individuals study End Times prophecy and believe that one of various scenarios might occur in their lifetime. While some Christians (and even people of other religions) believe that the Rapture will follow a period of Tribulation, others believe that the Rapture is imminent and will precede the Tribulation ("Pre-Trib Rapture"). There is a wide range of beliefs and attitudes in this group. They run the gamut from pacifist to armed camp, and from having no food stockpiles (leaving their sustenance up to God's providence) to storing decades' worth of food.