Winter climbing midlayer, standalone at camp, packable warmth for backcountry rest periods a " the Cerium is alpine proven. Driven by our obsessive attention to detail, we refined the design, sourced sustainable materials, and kept its exceptional warmth-to-weight ratio. Responsibly-sourced 850 fill down a " with Corelofta" synthetic utilized in areas prone to moisture a " provides premium insulation. The outer a " recycled 15D Aratoa" nylon a " is light and durable, a bio-derived liner reduces petroleum use, and an insulated StormHooda" extends protection. Fit & Design: Fitted cut stays close to the chest, waist, hips, and thighs to eliminate bulk and layer easily Articulated patterning delivers unrestricted mobility and comfort Adjustable, down-insulated StormHooda" is helmet compatible and features a single-pull drawcord adjuster Reverse-coil center-front zipper improves durability and creates a streamlined profile TPU zipper pulls reduce noise and are easy to grab with gloves Stretchy cuffs keep sleeves secured at the wrists Two hand pockets with zippers Internal zippered security pocket protects essentials Includes a removable stuff sack attached within the inner pocket for easy packability Adjustable hem drawcord seals out cold drafts Garment center back length: 29 in. (72 cm) in size M Technology: Down Composite Mappinga" strategically places Corelofta" 80 synthetic insulation in areas prone to moisture and 850 fill down for maximum warmth 850 fill European white goose down delivers an exceptional warmth-to-weight ratio Corelofta" 80 (80 g/mA^2) synthetic insulation provides dependable warmth Recycled 15D Aratoa" outer face fabric is light, durable, wind-resistant, and colored with dope-dyed yarns Downproof 20D plant-based Aratoa" liner reduces petroleum use and remains exceptionally lightweight FC0-DWR (Durable Water Repellent) finish repels moisture Compressible and packable design stows away easily Additional Details: 100% of down is certified to the Responsible Down Standard (RDS) by IDFL (No. TE-99950273) Contains feather not exceeding that allowable by law; Sterilization Permit Number: PER. NO. PA-8811 (CA) Contains bio-derived materials, recycled content, and bluesignA(R) approved padding; PFAS compliant Care instructions: Machine wash gentle low (front load washer recommended; use mesh bag for top load); tumble dry gentle low with tennis balls; do not bleach; wash dark colors separately; do not dry clean; do not iron; do not use fabric softener; double rinse