Tried this to help cut down on heat over popup beds while at the beach. They work and did a great job of reducing the heat transfer inside the camper. Used bungee cords to attach and even though it was windy they worked great

This could save your life. The northeast winters require us to keep something warm in our vehicles. This does the job!

We have a 1989 Coleman Chesapeake pop-up camper. We bought these instead of a Gizmo to try to keep it cool inside. It fit the smaller side perfectly. Too small for the queen size slide - but still helped to keep it cool(er) than outdoors. It also helped keep it darker in the early morning - which meant the kids slept later than 6am - which was well worth the cost!

We used this to cover our tents while camping in hot exposed areas. Worked great to reflect the sun rays and keep the tent cool and dark until late in the day. They're generally sturdy and held up to wind and a few uses so far. I had them secured with cord at the grommets and all of them torn pretty easily at the grommets. I had to reinforce with duct tape.

I originally bought two of these for a rather non-standard purpose. My dogs live on our screened in porch. During the winter, they have Kane heating pads in their cage (https://www.amazon.com/dp/B00FW1S3GU/ref=cm_sw_em_r_mt_dp_D54H9H0YFBSZ6W7WJ351?_encoding=UTF8&psc=1 ), but I typically cover them with heavy duty canvas tarps (https://www.amazon.com/dp/B082P75Q6R/ref=cm_sw_em_r_mt_dp_2SWZ32346QHR2ATMGRTR?_encoding=UTF8&psc=1 ) and the crates consistently stay a very comfortable temperature. I realized that a reflective cover would provide even better resistance without so many layers. Enter this product.
I bought one for each crate, and was extremely pleased with the results. On average, the kennels were about 3 to 5 degrees warmer than they had been. Because of their compact size, I decided to buy two additional ones that I have kept in my truck - in case of some winter emergency.

While the color is not my favorite, the quality of stitching is apparent. They have stayed supple and have not aged like some plastics can which is another reason I believe these are well worth the cost. The dogs love their kennels and being outside, when I tried to move them inside their first winter, they howled all night long, so back to the porch. I am forever worried about them and keep a Sensor Push temperature sensor (https://www.amazon.com/dp/B01AEQ9X9I/ref=cm_sw_em_r_mt_dp_587XV2CQJEN6Z8HVBADV?_encoding=UTF8&psc=1) which i have programmed to alert me if their crate temperatures get either too hot or too cold. It also provides a graph of performance on the app. The results that the addition of these emergency blankets is evident.

Whether it is for camping, for dogs, or for emergencies, I highly recommend these and will definitely buy these again in the future.