Needle punched, insulating material ideal for home sewers and INSUL-BRIGHT, a needle-punched, insulating material ideal crafters. Create projects like pot holders, oven mitts, and for home sewers and crafters. The needled material is casserole covers. Hollow, polyester fibers needlepunched breathable and won't break down with washing. The hollow through a nonwoven substrate and through a reflective fibers resist conduction while the reflective mylar metalized poly film. This reflective material resists resists radiant energy. The energy, hot or cold, is radiant energy, reflecting the hot or cold back to its source. reflected back to its source, making pot holders, oven mitts, and casserole covers functional and safe with Breathable and won't break down with washing. Heat resistant, INSUL-BRIGHT. Machine wash and dry. not heat proof.