The Heat Resisting Batting by Lori Holt of Bee in my Bonnet is made of plated aluminum film and polyester and is heat resistant. It helps to reduce or prevent the transmission of heat and cold and is perfect to use with the Cook Book Home Decor Casserole Carrier and Hot Pad Panel (HD11775-PANEL) which is sold separately. The package includes a one-yard cut. Made of: Plated Aluminum Film and Polyester Loft: Low Best use: Casserole Carrier or Hot Pad Panel