100% Polyester Comforter Duvet Insert: Queen comforter duvet insert measures 88 inches x 88 inches Box Style Stitching: Crisp looking comforter with siliconized fiber filling features piped edges with an elegant style box stitching that prevent the fill from shifting Siliconized Fiberfill: Extremely soft material with siliconized fiberfill alternative filling provides a comfy and cozy feel Corner Tabs: The four corner tabs make it extremely easy to put on any duvet cover and secures the comforter in place Machine Washable: Machine wash in the gentle cycle with cold water, line dry or tumble dry on heat.