You can also use Insul-Bright (needled insulated lining). It's used along with batting and a backing. Package says it's ideal for pot holders, table pads, oven mitts, baby water heater covers, casserole cozy, insulated soft lunch carriers, ironing board covers, outdoor stadium cushions, etc. It's also recommended to conserve body warmth and used in vests, gloves & mittens, hats, etc.
I bought mine online and then found that my JoAnn's sells it. I made potholders and a large ironing pad for my quilting table.