The Tres Parka is an H2No® Performance Standard 3-in-1 waterproof/windproof down coat for the coldest climes; its parka filled with 100% Traceable Down (600-fill-power duck down that can be traced back to birds that were never force-fed, never live-plucked) zips into a polyester stretch twill shell with a waterproof/breathable barrier and a DWR (durable water repellent) finish