Down comforters are specifically designed to fit our duvet covers. For maximum loft and minimal movement, the comforters have a baffle box design, and the double stitching of the satin piping prevents leaking. Attach the ties in the duvet cover to the comforter's looped corners so that it stays in place. Custom sizes for optimum fit Looped corners for attaching to duvet covers Multi-purpose all-season weight Sterilized filling; minimum 75% white goose down Baffled squares for maximum loft 500-550 fill power 260-thread count, 100% cotton cover Double-stitched with piping DAYBED 109"W X 62"L 29 OZ. TWIN 73"W X 98"L 30 OZ. FULL 88"W X 98"L 36 OZ. QUEEN 100"W X 102"L 42 OZ. SUPER QUEEN 108" W X 110" 50 OZ. KING 114"W X 102"L 48 OZ. SUPER KING 126"W X 110" L 54 OZ. CAL KING 116" W X 112"L 52 OZ.