This super soft and warm duvet insert is filled with Polyester angel-hair fiber stitched into a waffle box pattern to ensure the fill doesn't shift, keeping you warm and cozy throughout the night. The cover is made of 100-percent Cotton, and the Insert is machine washable for easy care.Features: Construction: Box-Baffled Stitch Product Features: Baffle Box Fill Type: Down Alternative Style: Casual Material: Polyester Warmth Rating: All Season Care Instruction: Machine Wash Color: White Size: Twin, Queen, King, Super King Dimensions:Twin: 69 inches wide x 89 inches long with 42 ounces of fillQueen: 94 inches wide x 96 inches long with 64 ounces of fillKing: 106 inches wide x 109 inches long with 80 ounces of fillSuper King: 114 inches wide x 100 inches long 95 with ounces of fill