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Fill Power

Fill power is a term used to describe the quality of down. Fill Power is the amount of cubic inches that 1 ounce of Down will fill. The higher the fill power, the larger and stronger the clusters of down, and the better the down will loft, trap air and insulate. Large clusters provide superior insulation, breathe better and last much longer than smaller, fragile down clusters used in many lower quality or imported comforters.