100% Cotton 【Presidential Suite Elite Fluffy Duvet Insert】- Cultivated in the icy regions of North Latitude 37, our down comforter stands apart with a unique cultivation period exceeding 180 days. Unlike the typical 30 days for standard down, this extended growth ensures the production of exceptionally luxurious and fully developed down filaments，Filling is made in the USA. 【Premium Down Comforter Material】Good sleep hygiene is crucial for quality rest. To ensure this, we meticulously manage breeding density and maintain spotless poultry farms. Additionally, we employ 33 rigorous down-washing procedures, resulting in an exceptional cleanliness level of over 1000+. The duvet insert which has 600 fill power, is filled with over 75% white down. Special FreshLoft technical processing makes down and feathers hypoallergenic. The premium filling have all passed the ADFC, OEKO-TEX Certification, fluffy and odorless. 【Luxurious fabrics cotton 500 thread count】Our duvet comforter is made of damask stripe 100% cotton fabric, with 500 thread count, which is soft, natural, plush, and breathable, ensuring a noiseless and super cozy night's sleep like a 5-star hotel collection. 【3D Baffle Box Design】 - The innovative 3D Baffle Box construction guarantees the even distribution of down throughout the comforter, preventing shifting and clumping. This design ensures consistent comfort every night, eliminating any discomfort from uneven filling. 【Hotel Quality】Products from Blue Ridge Home Fashions is a bedding American manufacturer with over 36 years of experience, committed to developing high-quality products and providing excellent customer service. if you have any concerns or are unsatisfied with our product, please feel free to contact us anytime, and we will ensure your complete satisfaction.