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There's many different kinds of "down" filling: "100% down" must legally be only down, while "down" can be any mixture containing down. Then there's "fill power" ranging from about 400 to 1200, wh...
#2: Attribution notice added
by
System
·
2020-04-17T22:15:52Z (about 4 years ago)
Source: https://outdoors.stackexchange.com/q/3835 License name: CC BY-SA 3.0 License URL: https://creativecommons.org/licenses/by-sa/3.0/
#1: Initial revision
by
themirror
·
2020-04-17T22:15:52Z (about 4 years ago)
<p>There's many different kinds of "down" filling: "100% down" must legally be only down, while "down" can be any mixture containing down.</p> <p>Then there's "fill power" ranging from about 400 to 1200, which basically measures how resistent the feathers are to crushing by weight. Higher "fill power" provides more insulation and is significantly more expensive.</p> <p>Is there any quantitative data about just how much the thermal insulation ability VARIES from the "worst" down to the "best" down? In other words, is it possible that spending 10X as much $$$ on high-end down can make a significant difference in insulation, or is it negligible? </p>