Cerium Series: Streamlined, lightweight goose down filled jackets made of a composite construction to provide warmth where it is needed most. High warmth-to-weight ratio. LT: Light Weight. Built with highly durable top performance materials but designed with a streamlined minimalist set of features to provide very light weight. The lightest down piece in this collection functions as a mid layer or standalone piece in cooler, dry conditions. Down Composite Mapping strategically places Coreloft(TM) synthetic insulation in areas where moisture may buildup; down in the core and the collar gives maximum warmth. Features: Moisture-resistant outer face fabric Breathable Insulated Great warmth-to-weight ratio Lightweight Compressible and packable Wind resistant DWR finish (Durable Water Repellent) helps repel water from fabric surface Down Composite Mapping strategically places Coreloft(TM) synthetic insulation in areas where moisture may buildup and down in areas for maximum warmth Insulated collar Chin guard Full front zip with chin guard Corded zipper-pulls reduce noise and are easy to grab Elastic cuffs Two hand pockets with zippers Includes stuff sack Trim fit, Hip Length Weight: 245 g / 8.6 oz Activity: All Around Materials: Coreloft(TM) 80 (80 g/m ) insulation. Made with highly crimped multi-denier siliconized polyester yarn, this lightweight, breathable, and thermally efficient, 100% polyester staple fibre is very compressible and has excellent loft retention. Coreloft(TM) 100 (100g/m) insulation. Made with highly crimped multi-denier siliconized polyester yarn, this lightweight, breathable, and thermally efficient, 100% polyester staple fiber is very compressible and has excellent loft retention. Arato(TM) 10 - 100% nylon 850 fill European white goose down