Home Decorative Square Custom Throw Pillow Cover Theme Nature Simple Theme Nature 18 X 18Inches Cotton Comfortable Throw Pillowcase Brand: Densiy Dimensions: Approx.18"*18" Material: 50% cotton, 50% polyester(One side) The pillow cover is made with color matching invisible zipper that allows easy insertion and removal of pillow inserts. Hidden zipper design, Safe to machine wash