Smooth linen gives this pillow cover a natural advantage: it looks polished and sophisticated yet casual at the same time, and it comes in easy-to-mix hues that blend with your existing pillow collection. The flange edges give it classic, tailored style. Made from a 77% rayon and 23% linen blend. Yarn-dyed for rich, lasting color. STANDARD 100 by OEKO-TEX® certified. Tested in an independent lab and verified to be safe from over 350 harmful substances. Reverses to solid. Zipper closure. Accommodates an 18" square insert (sold separately). Machine wash. Imported.