This RDS-certified down jacket keeps you warm during cold weather treks! (down to -5° when active). The most compressible of our down jackets takes up less space in your backpack so you can travel light. Its filling power of 800 cubic inches (CUIN) gives you a great warmth/light weight ratio! Warmth Comfortable between 5°C and -5°C. RDS ethical down with a fill power of 800 CUIN Water repellent Surface-treated outer fabric to prevent water from getting in. Compact design Easily folds away into its left-hand pocket using a zip with double puller. Weight This down jacket weighs around 275 g in size M. Fabric 35 g/sqm, 15 Denier.