This is one high-quality down comforter, with extras that make it an exceptional value. For starters, the 550 fill power down is a high-quality insulator that’s super-cleaned for greater purity. It’s prewashed, then washed again in an intense cleansing process for a uniform grade of down that is dust- and odor-free. It’s so pure it can be labeled “hypoallergenic.” What’s more, this comforter’s box construction keeps down dispersed so it doesn’t shift and cause cold spots. And fabric loops secure the comforter inside a duvet cover.