PolyTherm is a needle-punched, insulated material ideal for crafters. It consists of polyester fibers, needle-punched through a reflective metalized polyester film. The needled material is breathable and won't break down with washing. The polyester fibers resist conduction while the reflective metalized polyester film reflects radiant energy, hot or cold, back to its source.
PolyTherm is not recommended for microwave use.
Fleece is precut into 36" x 62" pieces.