Decorative Pillows Throw Pillows Pillow Covers 18 Inch Square Cover Waverly Blue & White Ikat Cotton Envelope back and knife edge. FLAT SHIPPING! THE MORE YOU BUY THE MORE YOU SAVE! Also available with removable pillow insert. Cotton 18 x 18 square. Fabric by the yard also available. Made in USA by Decorative Things. Affordable home decor with decorator style.