Better to use as window liners to keep heat out or in depending on the season than an emergency blanket.

I wouldn't use this for an emergency blanket. It is too thin and rips easily. I like to line my windows and keep out the heat & dim the brightness of the sun. I cut it to fit & stick velcro stickers on it and the window frame . It keeps a several degrees cooler & a single layer I can see thru. 2 layers & I can't see thru. It is a better value than curtains that do the same thing. I also cover my cooler with it in the car. I'm going to cut it to the car side windows and anchor it with the window up to keep the car cooler. If it tears it is such a good value I can just get more.

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