While this isn't a downside, it should be noted that while the Downtec 650-fill down is waterproof, this jacket is not. It isn’t a shell and has no waterproof coating, so water will penetrate it.
And if you've ever been caught in a sudden downpour or faced gusty winds on a mountain hike, you know the importance of a reliable waterproof jacket. The best waterproof jackets can come in handy ...