A layer like Flylow's Laurel Vest becomes essential the first time you put it on. By adding strategically placed insulation at the core, we're suddenly warmer on every hike, climb, and coffee shop date. Synthetic insulation in the shoulder is quick-drying and moisture-resistant, so it stays warm and lofty during light snowstorms and sweat-generating activities. Meanwhile, in the rest of the torso, responsibly sourced down offers the lightweight warmth it's known for.