When it comes to down jackets, the instinct is often to choose the warmest option available. This is especially true if you’re gearing up for a winter in regions like northern Wisconsin, where I tested various options. However, if your needs are more aligned with mild shoulder-season excursions or high-altitude summer backpacking, a bulky winter parka with 800 fill power may not be necessary.
For casual use, we recommend opting for jackets with a down fill power rating of at least 500. There’s no need to invest in a jacket with 900 fill power unless you’ll be facing sub-zero temperatures or if you’re someone who tends to feel cold all the time. For those who typically find themselves in milder climates, a lighter jacket would suffice.
Additionally, if you’re planning to go backpacking, it’s crucial to consider the packability of the jacket and how much extra weight it adds to your gear. Regrettably, the lightest jackets often feature higher fill power since they can retain warmth with less down material. However, by being realistic about the conditions you’ll encounter, you can easily make do with a more affordable option.