MM Down 95-5 Luxury Goose Down Duvet Inner - Queen The MM Down duvet inners are stitched in a square cassette construction to ensure even distribution, covered in 300-thread count pure cotton sateen fabric, with silver piping & double stitching. Allergy sufferers can breathe easily with the practical Swiss technology hygiene function Sanitized, ensuring long-lasting freshness, comfort, and precision. 95 percent White Goose Down 5 percent White Goose Feather High Warmth Sizes. Queen 210cm x 210cm M.M Down care instructions