The Best Puffer Jackets to Survive the Cold
Briefly

When selecting a down jacket, it's essential to consider the climate and usage rather than simply choosing the warmest option. For light use, jackets with a down fill power of at least 500 are advisable, as higher fill powers like 900 are not necessary unless in extreme conditions. Also, packability and weight are important for backpackers; the lightest jackets often have higher fill powers. Understanding down fill power and fill weight aids in effectively comparing jacket warmth, making informed choices based on individual temperature needs and activities.
If you're looking for additional warmth during shoulder season trips or summer backpacking, opt for a jacket with at least 500 fill power, rather than an overstuffed parka.
Understanding down fill power and fill weight is crucial for comparing jackets: fill power indicates down quality, while fill weight shows how much down is used.
Read at WIRED
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