The S.O.L. Heavy Duty Emergency Blanket is the best overall for its ample size, durable materials, affordable price, and quality heat reflectivity. If wool is more your style, the EKTOS Wool Survival ...
Metalized Mylar “space blankets” are sold as a survivalist’s accessory, primarily due to their propensity for reflecting heat. They’re pretty cheap, and [HamJazz] has performed some experiments on ...
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