Getting a good night's sleep is easy when the bed linens are made of 100% organic cotton! The GOTS-certified Kullero duvet cover set is made from high-quality plain-weave cotton, which is durable and easy to care for. No wonder plain-weave fabric has claimed its place as the go-to choice among bedroom textiles! The duvet cover's thread count is 152 TC, meaning the fabric is tightly woven, giving the set a quality feel. The set is finished with the Kullero pattern by Kaarina Kellomäki. The product has been granted the GOTS certification, meaning its entire supply chain adheres to strict ecological and social criteria. It also has the STANDARD 100 by OEKO-TEX certification, indicating that the product contains no harmful chemicals and is safe for the user. Read more about the certifications below.