900 Down Fill Power
Down/feature ratio of our jackets is 90 to 10 as opposed to more common 70/30 and 80/20. The more down is in the jacket, the warmer it is.
The fill power rating can range from 300 to 900 and above. The most common down products have a rating of 400 to 500. Our jackets have 900 fill power which means a jacket of this caliber will be both warmer and more comfortable.