"What Our Gearhead® Experts Are Saying:""I wore this on a few chilly climbing days where I needed warmth but still wanted full mobility. The stretch fabric makes a big difference when reaching overhead or moving around camp, and it packs down small enough that I always keep it in my pack.""Cold starts and windy ridgelines call for insulation that keeps up with every move. Mountain Hardwear designed the Stretchdown Light Jacket to provide lightweight warmth that stays comfortable from the trailhead to camp. A stretch-woven fabric forms pockets of 700-fill down insulation, creating warmth that moves naturally with our body instead of feeling stiff like traditional down jackets. The durable doubleweave fabric provides reliable protection for trail use, while elastic binding at the cuffs helps trap heat when temperatures drop. When the day warms up or space in the pack gets tight, the jacket compresses easily into its own pocket for efficient storage."