"HIGH QUALITY DOWN - The duvet is filled with 50% goose down feather (20% goose down + 80% goose feather) and 50% down substitute (better than other substitutes, it can reach 80% of the heat retention of real down), which gives this duvet this duvet a feeling of lightness but warmth, as if sleeping in the clouds. It has passed the OEKO TEX safety standard. Feel free to choose Goose Down - In order to offer our customers a superior experience, we use 50% goose down instead of duck down or any other down. Goose down is 50% larger than duck down and is fluffier, warmer and odorless. Goose down duvets are more durable, environmentally friendly, and healthier than alternative down comforters. MORE DURABLE BLANKET - This duvet uses a 300 thread count cover that prevents down leakage and the design of a 14""x14"" square stitch quilting keeps the filling in place, whether during daily use or washing, allowing the duvet to retain the same thickness and look fluffy. The pure cotton cover also effectively reduces noise and isolates movement disturbance between family members. Corner tabs – This down feather duvet has 4 tabs on all four corners, making it very easy to place on any duvet and keep the duvet in place. Double needle stitching with piping also effectively prevent feather and down leakage. EASY CARE - Our duvet cover is made of 100% organic cotton, which can reduce static electricity and not shrink easily. Please wash separately in a washing machine on a gentle cycle in cold water. Do not bleach or iron. If the down jacket knots after machine washing, just gently pat the down jacket back to its original condition."