Pillow Cases Standard Size Cushion Covers 1 Side-Phantom of The Opera-20x30 D332-02 50% cotton, 50% polyester. The material is made of a fine soft blend of fabrics, giving the pillow case a soft and comfortable texture. This pillowcase is for 1 side printing. This custom standard pillowcase is roomy in size (20"x30") The?custom pillow case is without?buttons,?and?has?an?opening?on?the?side. Note: Does not include pillow cotton.