Keeping the heat out of the rv with the double layer reflective side, blocks out the sun, keep heat out or cold out, helps to save on your electric bill.
Full 2.8 inch of foam to help stop heat/light transfer.
Fits 14"x 14" RV/camper standard skylights/vents.
Waterproof outer layer, perfect for RV shower room, the exterior fabric cover has a zipper, can be removed for washing if needed.
The latest upgrade: the four side faces are covered with non-slip particles, so that the RV vent insulator stays in the skylight and does not slip off.