NEWLAKE King Comforter Duvet Insert White, Plush Siliconized Fiberfill Soft Material: 100% cotton exterior and 100% polyester interior Light Weight: a fill weight of 8.11 oz., great for snuggling with/under/on-top-of comforter Easy Care: Machine wash in the gentle cycle with cold water, sun-dry or tumble dry on low when needed Healthy Living: The hypo-allergenic comforter provides a barrier to protect against dust mites, mold, and mildew All Year Round Usage: comfortable in summer months with air-conditioning and in winter with an extra blanket if needed