the.com/survival blanket
A sheet of foil that stands between you and dying of optimism outdoors.
means A lightweight sheet, usually metallic on one side, designed to reflect body heat back to you and shield you from wind and rain in an emergency.
from Developed from space-age materials science — the reflective coating is a descendant of the metallized Mylar film NASA engineers created in the 1960s to insulate spacecraft and astronaut gear. The technology trickled down into camping and emergency supply kits, prized because it packs down to almost nothing but unfolds into a surprisingly effective heat-reflector, trapping radiated body warmth like a tiny personal foil oven.
- heat retention
- reflects back 90 percent of your body heat
- material
- mylar, the same stuff as party balloons
- origin
- developed by NASA for spacecraft insulation in 1964
- packed size
- folds smaller than a smartphone, weighs almost nothing