AVAILABLE SIZE: Our all season duvet inserts are available in 4 different sizes: Twin (68*88"), Full/Queen (88*88"), King (104*88"),California King (108*94") . Whether you use it as a duvet insert or on its own, it's sure to keep you cozy all night long. PREMIUM FABRIC: These feather comforters are made of soft, down-proof microfiber fabric that’s smooth, skin-friendly, and noiseless. Certified by OEKO-TEX Standard 100, they won’t have any annoying filling poking at you, and sleeping under them feels like resting in the clouds. EXQUISITE WORKMANSHIP: The design of box-stitch quilting and nice piping assist in increasing loft and maintaining fluffiness of the comforter, and double-needle stitching avoid shedding and enhance durability, keeps the filling in place and avoid any leaking during the night ensuring a stable sleep. 3D BAFFLE BOX DESIGN: 3D Baffle Box Construction with superior stitching keeps the light down fiber evenly distributed, no shifting or clumping. The filling can truly expand and create maximum loft, make the comforter cloud-like fluffy, its breathable cover and goose down finer filling make it perfect for year-round use. EASY CARE: We use high-quality, genuine goose down and feathers, so improper machine washing may cause odors. Typically, dry cleaning is recommended. If machine washing is necessary, ensure you use a down-specific detergent, select a large-capacity washing machine, choose a gentle cycle with cold or room temperature water (below 40℃), and must tumble dry on a low-heat setting until the comforter is fully fluffy. Arrival Handling: When you receive your feather comforter, it may be compressed in a sealed bag. To fully expand it, we recommend spreading it out and gently patting it, or tumble drying it on a low setting for 15 minutes. UNIKOME Goose Feather Down Comforter - All Season Duvet Insert with Soft Downproof Cover, Cloud-like Fluffiness King Size Feather Comforters, (King, Blue,88"X104")