Front fabric is made of 100% linen; reverse fabric is 52% linen and 48% cotton blend.Reverses to solid natural.Zipper closure.To learn more about our environmental commitment click here.STANDARD 100 by OEKO-TEX Certified: tested for 350+ harmful substances to keep you and your family safe from chemicals common to textile manufacturing.Accommodates a 20″ square insert (sold separately).Imported.Machine wash cold; gentle cycle.Use only non-chlorine bleach when needed.Tumble dry low.Warm iron if needed.Overall: 20″ sqZipper: 19″ l