If you are looking for a nice duvet insert, this all-season goose down one is wonderful. It is a great medium weight, so you can use it year round regardless of the season and it has the perfect fluffiness. My favorite feature is that the pleats and seaming prevent all the down from bunching in one corner or side of the duvet, which can be so annoying. Heads up it comes vacuum sealed in a bag and will look really thin at first, shake it out and let it sit out for a day to fluff up.
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