Bosal Jiffy Mitt- Two die cut mitt shapes of our revolutionary insulating fabric to withstand temperatures up to 450°F to make one Jiffy Mitt! *Pattern Not Included* Create pot holders and more with this heat resistant batting from Bosal. Bosal's Insulating Batting can withstand temperatures up to 450° Fahrenheit, making it ideal for kitchenware. This batting should not be washed and is made of 100% Polyester. Made in the USA.