The Arc'teryx Women's Cerium SL Vest is a superlight vest for warmth without the weight. Packed with 850 fill power goose down your center stays toasty whether worn alone or as a midlayer. Hike, explore, stay warm while doing it. Features of the Arcteryx Women's Cerium SL Vest Super lightweight Arato 7 face fabric with DWR finish repels moisture Down Composite Mapping strategically places both down and synthetic Insulation Lightweight, minimal front and hand pocket zippers, 1L stuff sack included Collar height provides warmth while layering easily Adjustable hem drawcord seals out cold