Calvin and Hobbes Pillowcase Bedding Pillowcases 20"x30" Two Sides Pillow Case This custom standard pillowcase has been designed to add sophistication and style to your bedroom. With pre-shrunk fabric, this pillowcase is washable at 60 . High quality material giving the pillow a soft and comfortable texture. 50% cotton, 50% polyester. Having this soft custom pillowcase will add both comfort and style to your home. Customize your personalized pillowcase,it would be perfect to decorate your home.