A critical piece in your layering system, the versatile Temerity Vest features exposed 75gm PrimaLoft® Active Evolve insulation. By eliminating the interior lining, the insulation dries quicker, is more breathable and lighter, making this piece our premier active insulator. Weighing a mere 175g, put it on and keep it on (or throw it in your pack) for all of your cold-weather adventures.