The entire unit with included bag only weighs 192 grams, which seems impossible, but they did say thin & light in the listing. Let's examine this a bit more. First off this is a bit too big for our 2022 Corolla Hybrid front window, but I was able to finagle it a bit to make it work. A smaller unit would work better and I should have measured carefully before ordering, or at least looked up the front window size of the E210 corolla to get the right size, but I am a flawed sinner hypocrite and make mistakes and willingly admit it. If it was more expensive, I would return it and get the right size, but since I was able to make it work, I am just going to go with it.
I left a mostly positive product review on the related Amazon listing. It does completely black out the incoming solar radiation or light very well given the incredibly thin materials used. Let's make this clear, it's 4 nano coatings, not 4 layers. I am reminded of mylar mixed with thin synthetic fabric kite material.
So perhaps they are saying the UV blocking coats were applied 4 times to make 99.99% UV & heat blocking in incredible thin fabric that does an excellent job at blackout the front window on the inside.
After 15 minutes in cloudy overcast weather clear without rain, I did notice a notable temperature drop of at least 10 deg after installing the folding sun shade. I removed it from the car however, noticing that the virgin new polymer materials were off gassing causing a strange order inside the cabin. I will let it off-gas on the deck of our home for a bit before putting it back in the car.
It will be exciting to see the test in full sun during summer hot weather. I am sick with a nasty intense virus now for 5 days, and it was full sun yesterday, so I actually went and heat soaked in the car. The dash camera was so hot that I hade a hard time removing it without wanting to set it down quickly like a very hot cup of coffee or tea without a handle, where you have to hold the body of the cup which is similar in temperature to the hot fluid inside. I would estimate without measuring, that the dash cam was 140F having more than 20 years of experiences playing with hot fluids, hot cups of tea and coffee, and hot water. It's easy to loosen the suction cup bracket and disconnect the power cable. The glove box stays cooler than most of the rest of the interior when sun coming through the front window directly heating the black dash materials, so I put the dash cam in the glovebox to let it cool off. I used a camping pillow in the front passenger seat reclined to heat soak like a sauna for about 30 minutes and got uncomfortably overheated, causing me to look up an automotive window heat shield on Amazon with good review scores.
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