Zippered Pillow Cases: Featuring a highquality hidden zipper and doublehemmed stitching, these 100% cotton waterproof pillowcases provide durable protection by keeping your pillow covered while offering an extra layer of comfort that's gentle on your skin and hair. Their simple and elegant design pillow protectors with zipper king size seamlessly complements any bedroom style. Revitalize Old Pillows and Extend Their Life: These pillow covers are crafted from breathable, smooth cotton and are simple to clean. Available in both 2pack and 4pack options, these king size pillow protectors are fully machine washable. With a luxurious feel, the zippered design offers all the premium qualities of cotton pillow protectors. King Pillow Protector Set of 4: 4pack pillow encasements (2036 inches) offer costefficient bulk protection for households, hospitals, and hotels, with waterproof durability and easy maintenance to streamline multibed environments. Perfectly fits your king size pillows. Quality AssuranceOur king pillow covers durable and designed for frequent use, they maintain their quality over time, offering a sustainable solution for longlasting protection. Backed by a 1year warranty, our cotton pillowcase protector with a zipper combines functionality with elegance. Upgrade your bedding with 's hotelgrade quality. Silent & Comfortable Sleep Experience: Our waterproof pillow protectors feature a luxurious 600threadcount cotton outer layer that wicks away moisture, ensuring breathability and coziness. A noiseless TPU layer eliminates crinkly sounds typical of PVC/PEVA, 100% waterproofeffectively blocking sweat, drool, oil stains, and other liquid penetration, ensuring your pillow stays dry and fresh as new at all times.