20"sq. Front: 100% cotton. Back: 100% linen. We are a proud member of the Better Cotton Initiative. BCI Cotton is not physically traceable to final products. STANDARD 100 by OEKO-TEX® Certified: tested for 350+ harmful substances. Printed on front; solid on reverse. Zipper closure. Accommodates a 20"sq. Pillow Insert (sold separately). Made in India.