It's a tent in the literal sense of the word — its 16oz waterproof cotton canvas skin makes it so — but that doesn't mean you'll be dragging the Luminair Tree Tent (£6500 and up; roughly $10,000) around with you. Instead, think of the structure as a semi-permanent tree house. Thanks to a hybrid aluminum and steam-bent ash frame, the entire tent, including floor and bunks, weighs just 264 lbs., despite being able to handle an additional 550 lbs. of load. At 3 meters in diameter, it's not huge, but it's certainly big enough for two adults and provides an interesting option for above-ground shelter in the wilderness.
Whether you're preparing for the worst or just planning for an extra-long hiking trip, the Lifesaver Jerrycan ($450) is a handy thing to have around. Capable of holding five gallons of fluid, the Jerrycan incorporates the same filtration technology seen in the Lifesaver Bottle, allowing you to transform filthy, germ-ridden water into clean H2O with just a few pumps. And just in case the worst happens, it can filter enough water to sustain a family of 4 for nearly a year — which is way longer than that stash of bottled water in the basement is going to last.