From the Sage Collection. The Superior Oven Mitt by Now Designs is made from cotton twill fabric, making it flexible, durable and washable. Measuring 7 inches wide and 13 inches in length, it provides extra coverage when handling hot dishes. Every kitchen needs an oven mitt. Now Designs' oven mitt is made from 100 percent cotton. The Basic Oven Mitt Collection is proudly designed and made by Now Designs, who for 50 years has created exclusive home and kitchen products with style and the finest quality in mind.