19 Momme Seamless Silk Duvet CoverType: Hidden Zip Closure At The Side Of The Duvet Cover Material: 19 Momme Charmeuse Silk Corner Ties: 4 Corner Ties To Help Keep The Inner Comforter In Place. The seamless duvet cover is directly cut from a whole piece of silk fabric and thus does not have any seams in its material. This helps with the duvet cover's integrity and contributes to its longer shelf life. Wonderfully cool in the summer and not overly warm in winter. Giving you a better