High-quality Hungarian goose down feathers make a lightweight but very warm product. 400 thread count super soft long-staple poly-cotton cover keeps you fresh. Goose Down is a real treat to sleep under - marshmallowy, smooth, and beautifully light. Feel cocooned when you're wrapped up in this lovely, warm duvet. Eight corner tabs and double-stitched edges quilting keep this duvet working hard for years. The longer you use it, the more comfortable and fluffy our luxury feather-down comfort will become, and the crunch of the feathers will disappear.