They are quite durable dont tear easily and dont crease

Bopet sheets painted yellow on one side

5 stars for reflectivity if you ever survive a plane crash on a remote island use this blanket to build a reflector and be seen by vessels and aircraft miles away

Im using them as curtain liners between my curtains and the windows they are highly reflective more so than the most reflective window tint you can buy and at 2 a piece theyre cheaper than newspaper