What about thinsulate

Thinsulate is not a good insulator

Thinsulate was originally purposed in automobiles for sound attenuation. Wool is a better insulator and also better at minimizing sound. Thinsulate is certainly the lesser of other insulation evil mediums but similarly under-performing by comparison to our favorite natural fiber. Also, why would you want to support a chemical company like 3M? They are trashing our environment. 3M / Thinsulate pollutes groundwater Demand more from the companies you support!