Protect your pillows for a clean comfortable sleep. With Everlasting Comfort's Waterproof Hypoallergenic Pillow Protectors, you are protected from dirt, moisture, and other types of liquid from embedding itself into the fibers of your pillow. The exterior of our pillow protectors is made of 100 percent polyester terry fabric while our interior breathable polyester membrane allows air to pass through while keeping moisture and water out. Machine washable. Includes 2 pillow cases. Available in three different sizes: Standard (21” x 27”), Queen (20” x 30”), King (20” x 36”). We value your business and offer a lifetime warranty. If you’re unsatisfied with your pillow case cover protector for any reason we will send you a new set at no extra charge.