Updated for 2014 with streamlined baffles contoured to fit and flatter your body, our PrimaLoft ThermoBallTM jacket offers ultralight, highly compressible synthetic insulation to keep you warm in a variety of winter conditions. Our new insulation technology features round ThermoBallTM clusters that trap and retain heat to achieve phenomenal warmth in cold, wet weather. Wear or pack this ultralight jacket for reliable thermal insulation while winter camping in the backcountry.
