Pack or skip
Packable down jacket for Busan in February
Verdict
Pack it
Lows around 35°F — the packable puffer covers 90% of layering needs.
Why
Busan in February averages highs of 48°F, lows of 35°F, 6 rainy days.
That climate means a packable down jacket earns its space in the bag. Lows around 35°F — the packable puffer covers 90% of layering needs.