This luxury quilt by Sienna Living features 80% Goose down and 20% Goose feather filling. The higher ratio of down cluster means that this quilt insulates much better when compare to a quilt with higher amounts of feather. When compared to duck down, the goose down cluster size is larger therefore it gives the ability to insulate better. This quilt is rated to be the warmest quilt in the Sienna Living feather and down range. . The quilts are a cassette style or box walled construction which is a non adjustable design. Featuring a series of individually filled squares, which maintain an even distribution of warmth. This quilt is ideal for winter. (Note: 1 blanket weight being summer weight on our scale). All our duck/goose down quilts and pillows use ethically-sourced Australian duck/goose down and feather. Warmth without weight Fluff ability - better insulation Drape ability and softness Durability and lasts a lifetime Ability to breath - Wake up refreshed Washable and dry cleanable Proudly Australian - 5 Year Guarantee Single 850 gram fill Double 1000 gram fill Queen 1200 gram fill King 1400 gram fill Super King 1800 gram fill SIZING Quilt Sizing (AU) Single 140x210cm Double 180x210cm Queen 210x210cm King 240x210cm Super King 270x240cm