ThermaFlec fabric was designed for heat resistant purposes. This is the same material as the quilted thermalflec without the quilting. This silver fabric will reflect heat. This is usually used as a heat resistant barrier for potholders, ovenmits, and tablepads. ThermaFlec Heat Resistant Fabric - up to 399 degrees Fahrenheit. 60" wide. Silver only. Mylar/cotton blend. Machine wash warm, tumble dry. Priced per yard. In the photo above, ThermaFlec is the silver insulation of the casserole carrier. This makes a great gift item!