This Royal Elite Feather and Down duvet is an upgrade version of regular feather duvet. It is filled with 80% small white feather and 20% white down of 600 fill power. Duck down blended with small white feather increases the softness, fluffiness and warm comfort of the duvet. Out side 100% down-proof natural cotton shell creates soft and smooth touch feeling. Available in four sizes. Twin - 66 x 88'', Double - 80 x 88'', Queen - 90 x 88', King - 104 x 88''.