; For a high degree of warmth without extra weight, the Cerium SL Jacket offers lasting midlayer performance when there are miles left to trek. ; Trim Fit: • Motion-friendly fit with reduced fabric for minimal bulk. • Sized for a tailored, midlayer fit. ; SL: Super Light uses ultralightweight materials, improving packing and wear while reducing bulk. ; Thisela fabric: • 7-denier ripstop taffeta features a high strength-to-weight ratio. • Smooth face allows ease of movement under top layers. • DWR (durable water-repellent) finish. ; Down Composite Mapping design: • Targeted synthetic insulation reduces moisture retention high perspiration zones. • Coreloft 100 (100 g/m²) and Coreloft 40 (40 g/m²) siliconized polyfill in a compressible, multidenier construction. • 850-fill, European grey goose down offers a high warmth-to-weight ratio to effectively retain core warmth. ; Compressible design packs away easily into a stuff sack. ; Stand collar with zipper garage. ; Full zip. ; Zip hand pockets. ; Elastic cuffs. ; Droptail hem. ; Shell and Lining: 100% nylon; Body Insulation: 100% grey goose down; Synthetic Insulation: 100% polyester. ; Machine wash and tumble dry. ; Imported. Measurements: ; Length: 28 in ; Sleeve Length: 36 in ; Product measurements were taken using size MD. Please note that measurements may vary by size.