You may have learned not to expect too much from “space blankets” and other ultralight emergency blankets. Sure, Mylar blankets reflect heat but there is the issue of conductive heat loss. Without an insulator, heat will actually be lost. Some have explained it as feeling hot and cold at the same time. The Heat Saver u
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One Person. 56 inch x 84 inch. The most advanced emergency blanket on the market! Meticulously designed never to fail when you're counting on it with your life. It all starts with the material, vacuum-metalized polyethylene reflects 90% of your body heat while also offering a number of other important features that set it apart from traditional Mylar blankets. It opens easily and will not shred if nicked or punctured. Rips and the can be repaired. It is quiet and won't crinkle in high winds.
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LisenraIn Waterproof Emergency Blanket Survival Insulating Mylar