Updated with streamlined baffles contoured to fit your body, our PrimaLoft® ThermoBall™ jacket offers ultralight, highly compressible synthetic insulation to keep you warm in a variety of winter conditions. Our new insulation technology features round ThermoBall™ 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.
Features • Thermoball™ synthetic insulation has the warmth equivalent of 600-fill down • Zippered hand pockets • Internal elastic cuffs • Hem cinch-cord system in hand pockets • Stows in hand pocket
Specs • Fabric: 15D 33 g ThermoBall™—100% nylon insulation • Avg Weight: 350 g (12.34 oz) • Length from Center Back: 28"
THERMOBALL The new synthetic alternative to down The North Face™ developed a partnership with PrimaLoft® to offer a new synthetic alternative to down. ThermoBall™ is a revolution in insulation technology. Unlike traditional, continuous-filament synthetic insulations, the small round PrimaLoft® synthetic fiber clusters closely to mimic down clusters; trapping heat within small air pockets to retain warmth. Independent CLO testing has shown that ThermoBall™ technology can offer the low weight, loft, warmth, and compressibility of down with the wet-weather insulating performance of synthetics. Benefits: • ThermoBall Collection features Thermoball insulation technology • Lightweight • Phenomenal warmth in cold and wet conditions • Packs neatly into zipper pocket (not all styles pack into zipper pocket.) • Insulates even when wet.
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