The North Face ThermoBall Trekker Vest. NF0A3LHDStreamlined ThermoBall baffles are contoured to fit your body and maintain core warmth during winter excursions in cold, wet weather., 15D 33 g/m2 100% nylon with DWR finish, 11.5 g/ft2 ThermoBall synthetic insulation, Partially constructed from recycled fabrications, Secure-zip hand pockets, Stows in left hand pocket, Hem cinch-cord, Contrast embroidered The North Face logo on left hem and right back shoulder, BENEFITSDURABLE WATER-REPELLENT: DWR is applied to the face of the fabric to provide the first line of defense against wet weather.INSULATED: Insulation traps hot air for reduced heat loss and increased warmth.PACKABLE/STOWABLE: Highly compressible layer for emergency use or travel.SYNTHETIC: Designed to replicate the qualities of down, but retain them even when wet.