PUTTING DOWN WHERE IT COUNTSDown Composite Mapping™ places Coreloft™ synthetic insulation, that retains warmth when wet, along the shoulders, cuffs, underarms and front of mouth— areas prone to contact with moisture. 850 fill European white goose down lines the core and sleeves where warmth is most needed. SEALING THE WORLD OUTThe adjustable low profile down insulated StormHood™ makes sure the drafts stay outside, so you can do the same. DWR finish repels moisture and protects against light precipitationBACKCOUNTRY WARMTHStreamlined and lightweight, the Cerium LT down hoody is filled with 850 fill grey goose down and is intended to act primarily as a mid layer in cool, dry conditions. A three part sleeve moves freely and keeps a low profile.WEIGHT SAVINGSSpecialized construction: light, elasticized hem; three part sleeve; binding finishes and superior craftsmanship are the thoughtful attention to detail that allows the use of stronger fabrics that can stand up to everyday use. This is a piece you will want to live in.As an alternative to down fill insulation, we also offer fully synthetic fill products, such as the Atom LT Hoody.