For a cozy winter, the Calgary Warm Duvet is filled with our highest quality duck down, Legend 1859. This natural filling has exceptional loft and can store a lot of air to make a well insulated, yet breathable layer. Perfect for cool winter nights, the Calgary comforter has a 250g/m² weight for soft, sufficient warmth and will keep you in a light and cozy cocoon. What better way to spend good nights of restful sleep! With its cotton sateen cover and quality finishing, enjoy its elegance on a daily basis all winter long, whether on a single bed or on the largest of the double beds. Sustainable and responsible purchase with manufacturing in France, at our workshop in Saint-Sever. Filling : white duck from the Pyrenees, Legend 1859, 250g/m² 90% down, 10% feathers TOG (heat index): 13 Made in France Fabric : 100% white combed cotton satin 380 TC (150 threads/cm²) Baffle box stitching Cassette finish Double grey satin piping finish Includes a one dose bottle of detergent All our natural-filling duvets come with a five-year guarantee.