The Coronna Oven Mitten from Finlayson makes for the perfect addition to any kitchen. The exterior fabric of the Coronna oven mitt is rib weave cotton, which is firm and fairly thick. A heat-resistant filling of cotton, rayon, and other fibers provides safe handling of hot kitchenware. Finlayson's oven mitts are CE-marked, which means they have been tested for proper protection against contact heat.