Our Organic Duvet Cover is 100% GOTS-certified organic cotton with a luxurious sateen weave to provide a natural luxury soft feel while maintaining a nice silky sheen. Naturally wrinkle resistant and breathable. Each Organic Duvet Cover comes with hidden button enclosures and corner ties in each corner to connect the cover to the insert. Additionally, Full/Queen and King/CA King covers come with two shams. Twin size comes with one sham. Please note: Duvet Insert sold separately.