The Cerium is a go-to for virtually any alpine undertaking. Taking it higher, we refined the design 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 - provides premium insulation. The outer, recycled 15D Arato™ nylon with dope-dyed yarns, is light and durable. An insulated StormHood™ extends the warmth, and the streamlined ergonomic fit layers easily. Arc'teryx Womens Cerium Hoody Features: Suitable for Hiking,Trekking,Rock Climbing,Alpine Climbing,Around Town,Ski/Snowboard Moisture-resistant outer face fabric, Breathable Great warmth-to-weight ratio Lightweight Compressible and packable Wind resistant,Versatile Down Composite Mapping™ strategically places synthetic insulation in areas where moisture may buildup and down in areas for maximum warmth,Recycled 15D Arato™ outer is light, durable, and coloured with dope dyed yarns,Downproof 20D plant-based Arato™ liner is exceptionally lightweight and reduces petroleum use,850 fill European white goose down for exceptional warmth-to-weight ratio Trim fit makes it an ideal layering piece Articulated patterning for unrestricted mobility Stretchy cuffs FC0-DWR (Durable Water Repellent) finish repels moisture Two hand pockets with zippers,Included mini stuff sack with drawcord closure,Zippered internal security pocket TPU zipper pulls,Reverse coil centre-front zipper improves durability and creates a streamlined profile Contains raw materials made with at least 30% portion of recycled content,Contains materials that meet the bluesign criteria,Dope dyed uses significantly less water and energy in the dyeing process,RDS (Responsible Down Standard) - 100% of our down is certified to the Responsible Down Standard (RDS) by IDFL (No.TE-99950273),Feather - This product contains feather not exceeding that allowable by law Helmet compatible,Single pull adjuster does not restrict vision,Adjustable, insulated StormHood™ Adjustable hem cord seals out drafts