When you need an ultralight, compressible backcountry layer that is seriously warm, look no further than The North Face Trevail Packable Jacket. The outer shell is constructed using sustainable materials, making it kind to the environment. The inner consists of 800 fill certified goose down that trap body heat to keep your temperature consistent no matter how cold it gets on the trail.Internal elastic cuffs and a hem cinch cord help lock in extra warmth when navigating challenging terrain. When things heat up, you can unzip the front and let in some cooling airflow or take it off and stow it in its pocket. An internal chest pocket lets you stash small essentials, while the hand pockets are secure zipped for added safety.