Strategic placement of 850 fill goose down and synthetic Coreloft insulation makes the Arc'teryx Cerium LT Hoodie a stand alone or midlayer specialist in cold, dry conditions. . Down Composite Mapping: Down placed in areas for maximum warmth Coreloft synthetic insulation placed in moisture prone areas. 850 fill European white goose down insulation lines body and sleeves for heat trapping core warmth. Coreloft synthetic insulation 80 g, 100 g placed in areas prone to contact with moisture: Hemline, collar, sleevescuffs, and underarms. Coreloft insulates when wet and dries quickly. Lightweight, highly compressible, packable, water and wind resistant with great warmth to weight ratio. 20 x 10 denier high tenacity nylon shell fabric for wind and water resistance. DWR durable water repellent finish helps repel water from fabric surface. Insulated StormHood for full weather protection adjustable hood drawcords. Full front zipper with chin guard. Low profile, 3 part sleeve construction allows unrestricted movement. Two hand pockets with zippers. Elastic cuffs elasticized rear hem seals out drafts. Corded zipper pulls reduce noise and are easy to grab. Includes stuff sack. Trim fit with motion friendly traits layers well under a shell hip length.