Bluebell Goose Two-piece set includes an XL waterproof lined bowl cover & a natural, unbleached cotton jar cover. Waterproof lined bowl cover for bowls up to 12" wide. Specialty waterproof fabric* is water and odor resistant, excellent choice for longer sourdough proofing times. Jar cover is lined with a natural, unbleached cotton fabric. Both covers are topped with a Bee Kingdom, 100% cotton fabric, elasticized and designed to fit snugly over your dishes and bowls. * Waterproof lining is a product called ProCare, manufactured in the USA and / or Canada and is a certified food and medical grade product. Eco - friendly, hypoallergenic, BPA and PFOAS free. All items are super easy maintenance, machine wash and dry and made to last for years, reducing reliance on single use products such as zip top plastic bags, plastic cling wrap and aluminum foil. All products come in simple, minimalistic packaging, no plastic.