One of the women on BushCraftUSA shared this nifty little "Staying Alive Cold Kit" set-up this winter, using a mylar blanket, some duct tape and a candle:
Great idea. However, I wonder how good it will work when wind collapses it, air cushion around the body seem to be very fragile... I found reviews of Blizzard Bag, seems to be great product though did not receive good reception here. And apparently similar product sold by LifeSystems.
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