Flattering lightweight down coat. Wore one season. From the web page: In a class all its own, our revolutionary 850 coat defies cold, wet weather - and comparison. We combined all the best outerwear technology - innovative DownTek fill, 850-fill-power and a Pertex Quantum nylon shell - for unbeatable performance. Warmer Comfort Rating Icon. COMFORT LEVEL: WARMER Best for range of cold-weather conditions and outdoor adventures.