Amazon.com.au:Customer reviews: Emergency Mylar Thermal Blankets (4-Pack) + Bonus Signature Gold Foil Space Blanket: Designed for NASA, Outdoors, Hiking, Survival, Marathons or First Aid (Double Color Sides: Orange & Army Green)
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This is my second purchase of this product, having given it to friends and family to add to their emergency kits. The product is excellent. I recently tested using their Mylar sheets with my pancho and liner to judge how well it kept me warm on a cold night. It wasn’t 0 C, but I felt quite warm. Also, it arrived quickly both times. I recommend this company and product!