Bubble Reflective Window Insulation for Winter,36"(W) X 10 Ft(L) Window Insulation Kit for Save Energy,RV Window Insulation

I had used another brand (white covering)before and it didn't reflect as well as this. The foil cover, on both sides, makes it easier to use. I does make a difference in my RV. I covered all the windows and the temperature is maintained at a decent level, compared to last summer (without it)

put this in a bathroom window to keep things warmer over the winter. seems to have done the job, tho i didnt verify with a temp gun or anything...just subjective opinion.

This arrived today. Pretty much as described, except in the product picture on Amazon, it is shown as coming in a roll. It actually arrives folded into 12" x 12" squares. That doesn't make a LOT of difference, except for the creases that you have to deal with if you are trying to cover a window like I was doing. It does block the sun very well as advertised.

It works great in my car and in my home

Very easy to cut to fit my camper windows. Definitely keeps the heat and sun out. A good buy!

We bought for our RV windows. We ordered 2 rolls. It covered 2 large windows on our super slide, and a bedroom window, 3 small skinny windows in the bunkhouse as well as half a tall skinny window. It has helped insulate so well in the winter and waiting for the warmer weather to test out how well it insulates then.

It was cheaper, thinner than some. Which I guess made it more flimsy, so sometimes it falls out of my car window which is annoying. I need to attach some sort of rib, or stiffener to keep it in place, then I will be happy with it.

It does the job but in comes folded. Creases are prevalent.

This is not thick enough, so if you are using to block light as well as insulate, get something thicker.