Cover: 100% cotton Soft and breathable, this wrap ensures optimal comfort all year round. Filling: 100% polyester siliconised hollow fibres for air filling and well-distributed warmth. Warmth level: The two duvets can be easily fastened together with sturdy ties, offering a solution adaptable to the seasons. Combine the lightweight duvet (white stitching) and the temperate duvet (blue stitching) to create a warm duvet perfect for winter. Care instructions: Like most of our duvets, this duvet is machine washable at a maximum temperature of 40°C. Made in France. Quality and French know-how for a duvet designed and manufactured in our Norman factory.