Luxury 5 star hotel 90% white goose down quilt 900 fill power

Goose down is a type of cluster that grows on the abdomen of geese. It is an animal protein fiber, and geese often immerse themselves in water from the neck to the chest. Therefore, the down feather on the abdomen is not only waterproof but also has the betterwarmth and cold resistance among all body feather. 90% goose down have high fill power which is an important international indicator for measuring the warmth retention of down comforter, referring to the volume of down per ounce (30 grams) under certain conditions, measured in cubic inches. For example, every 30 grams of down takes up 600 cubic inches, so it is 600 fill power. The more of fill power, the more it can fix a larger volume of air layer for insulation under the same filling weight. Common filling power is 550,600,650,700,750,800,850 and 900FP.