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.
For global catastrophic risks the costs of food storage become impractical for most of the population  and for some such catastrophes conventional agriculture would not function due to the loss of a large fraction of sunlight (e.g. during nuclear winter or a supervolcano). In such situations, alternative food is necessary, which is converting natural gas and wood fiber to human edible food.
Tenacious Tape is not the kind of survival gear you won’t use every time out but when that rogue branch falls on your camping tent and rips your fly you’ll be thanking your lucky stars you have it in your bag. It can prevent a difficult situation from turning into a life threatening one. Tenacious Tape is completely weatherproof and won’t ever wash out. It doesn’t leave any tacky residue and is also machine washable. It’s the kind of quiet innovation that elevates the outdoor experience for everyone without making a lot of noise and is essential survival gear for any outdoor aficionado. Available in 3” or 20” rolls and a variety of colors.
If you’re ordeal is an extended one you can lash the Ultimate Pro Knife to a small branch to create a spear for catching fish or small mammals. The pommel at the butt end can be used to hammer tent stakes and that little thing hanging from the lanyard cord is a powerful emergency whistle that can take over emergency signaling duties from the tactical flashlight or your long range walkie talkies when the sun comes up. A top-notch knife like this is essential survival gear.
Say you're at work and a terrorist attack occurs. Roads are closed to any and all traffic but you only want to get home - even if that means walking. You may not want to grab your full on family pack in the car or you may not even be able to get to it. But you just want a light kit to get you through. How far is it to get home from wherever you may be? This get home kit should provide for 1-3 nights of traveling on foot till you make it home.