General Worn as a midlayer or standalone, the Cerium has emerged as a go-to for virtually any alpine undertaking. Seeking to take it higher, Arcteryx refined the design of the Cerium LT Hoody and sourced more sustainable materials while maintaining its exceptional warmth-to-weight ratio and packability. Responsibly-sourced 850 fill down with Coreloft synthetic utilized in areas prone to moisture and provides premium insulation. The outer made with recycled 15D Arato nylon is light and durable, a bio-derived liner reduces petroleum use, and the insulated StormHood extends the warmth. Technical details Ideal use: All Round, walking, hiking Materials: Shell: Arato 15 - 100% Recycled Dope Dye Nylon Lining: Arato 20 - 100% Nylon, 60% Bio-Derived Material Insulation 1: 850 fill European White Goose Down Insulation 2: Coreloft 100 and 80 - 80% Recycled Polyester Responsible Down Standard (RDS) FC0 DWR treatment Bluesign approved Adjustable hood drawcord with single pull adjuster Adjustable, down insulated StormHood Moisture-resistant outer face fabric Great warmth-to-weight ratio Compressible and packable 2 Zipped hand pockets Articulated patterning Adjustable hem cord Corded zipper-pulls Stuff sack included Helmet compatible Elasticated cuffs Wind resistant Full front zip Lightweight Breathable Insulated Fit: Fitted Weight: 330g