The North Face men's Thermoball Eco Vest offers ultralight, highly packable, synthetic insulation to keep you warm in a variety of conditions. ThermoBall is powered by PrimaLoft, a new synthetic alternative to down that achieves phenomenal warmth in cold and wet weather. As compressible as down, the clusters of round synthetic ThermoBall trap and retain heat within small air pockets to provide effective insulation, even when wet. Wear or pack this highly compressible, ultralight zip-front layer for reliable thermal insulation in a variety of winter conditions.
PrimaLoft Thermoball Eco
ThermoBall offers the lightweight loft, warmth and compressibility of down with the wet-weather insulating performance of synthetics. Retains warmth, even when wet.