Use the Bosal Poly-therm Heat Reflective Fleece - Silver for a variety of home crafting projects including tea cozies, wine caddies, lunch boxes, quilts, apparel and more. It comes designed with fleece on one side, which allows you to add dimensional details when machine or hand quilting. The silver lining on the other side reflects heat back to the source making it ideal for use in homemade coolers and warmers. This heat-reflective fleece is made of 100 % polyester fleece and 100% polyethylene film.