Abstract Captain America Flag Image Custom Pillowcase Design Pillow Case Cover Standard Size 20"X30" inch Image (one side) 50-percent cotton 50-percent polyester materials 50% cotton, 50% polyester. Custom Design Your Own Personalized Rectangle Pillow. Easy cleaning and maintenance. Standard Size 20X30 inch Customize your own style to show your personality. Design Cotton Pillow Case 20x30 (one side) The pillowcase can make you have comfortable feelings This pillowcase is washable at 60 degree (or lower) temperature