Casing: 700 Thread Count (350x2ply) natural fiber breathable and durable. Corner tie offers the option to put on your favourite duvet cover and secures the comforter in place. Down proof fine double needle edged with Satin cord piping. Fill content: Premium quality Canadian Standard White Down supplied by RDS members ensures that down and feathers come from animals that have not been subjected to any unnecessary harm. Filling power of 800 loft provides excellent insulating ability to allow you to sleep with maximum comfort matching your body temperature. Warm yet light-weighted and breathable. Baffle box construction: No annoying shifting or cold spot . The filling is evenly distributed over you providing a uniform fluffy surface for a peaceful sleep. Sizes and fills: Twin (64 x88 ) Full/Double (78 x88 ) Queen (88 x90 ) King (102 x90 ) and California/Super King (110 x100 )! Summer All-Seasons and Deluxe Fill! Make a combination that best suits you in any climate! PS: The sizes indicate the measurements of duvet shells. The measurement of a duvet after it is filled may vary depending on the fluffiness of the duvet. Confidence in Quality: This eco-conscious down duvet comforter is made of natural materials. Professionally sanitized and hypo-allergenic. Proudly filled by member of the Down Association of Canada in Canada. 15-year quality warranty.