Lightweight and designed for the backcountry, the Cerium LT Vest from Arc'teryx puts down where it counts. Filled with 850 fill European white goose down the Cerium LT is the perfect mid-layer for dry, cool conditions or as a standalone piece in mild weather. Down Composite Mapping allows for Coreloft synthetic insulation to be placed in areas where moisture may build up under the arms or in the shoulders, keeping you comfortable in any application. With a slim-fit, streamlined design this vest sits close to the body allowing you to retain heat and stay warmer in cold winter weather. Arato 10 - 100% Nylon, 850-Fill Power European White Goose Down/100g Coreloft Insulation, DWR Water-Resistant Finish, Down Composite Mapping, Mid-Height Insulated Collar, Tow Zippered Hand Pockets; Internal Zippered Security Pocket w/Stuff Sack, Adjustable Hem Drawcord, Improved Fit/Longer Body Length, Exterior Material: Arato 10 - 100% Nylon, Insulation Weight: 850 Fill European Goose Down/ Coreloft 100g Insulation, Waterproof Rating: