Have you run across the term “down fill power” while shopping for sleeping bags, puffer jackets, or a duvet? These numbers range from 450 to 900, and sometimes above. Generally—but not always—the ...
If you’ve ever shopped for a puffy jacket or sleeping bag, you may have seen the phrase “down fill power” in the product description. It’s a number, usually between 500 and 900, and it is a general ...