Here is a blanket designed to keep you warm in harsh outdoor conditions. The Arcturus Outdoor Survival Blanket is ideal for campers, boaters, and hikers. It is an all weather blanket with a Mylar reflective side to reflect heat or create a radiant barrier. The other side has two layers of polypropylene.
This blanket weighs less than a pound. It can be used to make a tent or emergency shelter.