Calvin And Hobbes Dark Sky Stars Custom Zippered Pillow Case 20"x26"(one side) - Shinhwa Create Material: 50% cotton, 50% polyester Minimum Quantity: 1 This custom standard pillowcase is roomy in size (20'' x 26'') and has been designed to add sophistication and style to your bedroom. It's a zippered pillow case, with a zippered opening on the side. With pre-shrunk fabric, this pillowcase is washable at 60 degree Celsius. 50% cotton, 50% polyester. Having this soft custom pillowcase will add both comfort and style to your home.