The quality of a duvet primarily depends on the type of down and feathers used for its filling.The best-quality feathers come from mature ducks and geese that have had time to fully develop their plumage. These provide larger down clusters,

One of the most important characteristics of down is its lightness.A down cluster, the most valuable part of the goose plumage, weighs only about 2 to 3 milligrams. This means that to obtain a single gram of down, between 300