Image not shown. Please note - Therapeutica Pillows are shipped with one free fitted pillowcase. If you need an extra pillowcase, the following five sizes are available: child, petite, average adult, large adult, and extra large adult. Same price each for any size listed. This fitted pillowcase can help protect your Therapeutica Cervical Pillow for years to come. A side zipper prevents the zipper from coming in contact with your face, neck or head while using the pillow.