Wonder Woman custom Pillowcase Design Standard Size 20x30 50% cotton, 50% polyester. Pillowcase Standard Size 20'' x 30''inch . Good hand-feel and Comfortable to use It is comfortable and Made of 50% cotton, 50% polyester. 100% Brand NEW Soft custom pillowcase will add both comfort and style to your home. Creat Your Own Personalized Rectangle Pillow The pilllowcase has been designed to add sophistication and style to your bedroom