Of down will be warmer than a 800 fill power jacket with 5 oz.
Down jacket temperature guide.
The winter jacket temperature gauge.
With the down weight and down to feather ratio being equal an 800 fill power jacket will be warmer than a 500 fill power jacket.
The better the quality of down the higher the fill power.
An 800 fill power jacket will require less down than a 500 fill power jacket to provide the same warmth.
As less down is required to provide the same amount of warmth jackets with a higher fill power tend to be lighter and more compressible.
Down jackets are there for if things really get cold for the.
The winter jacket temperature gauge.
Fill power ranges from 400 to 900.
Here are some examples to help illustrate how fill power and down weight work together.
The number one question everyone asks themselves when browsing for down jackets is how warm will it be some brands will print temperature ratings and ranges on their products sleeping bags will generally always have them in order to assure you that if it advertises warmth in 20 degree weather the product will keep you warm in 20 degree weather.
A jacket with 500 fill power and 10 oz.
For down outerwear ratings will generally fall between 600 and 800.
A jacket with a lower fp down on the other hand might not and probably will not prove nearly as durable.
During the winter months your jacket becomes a part of your identity.
A jacket with a higher fp down minimizes its loss of insulating power over time.
Winter means days with a chill and long nights but that doesn t mean you have to say goodbye to style.