Whether we're walking the streets of our favorite mountain town or hitting the nearby trails, the Flylow Larry Vest is our perfect companion. The tough, breathable material protects a combination of synthetic insulation and lofty down, which combine forces to keep us cozy on chilly days. The Spaceloft synthetic insulation retains warmth in damp conditions, and the lightweight down maintains a sleek profile that is right at home on and off the trail.