Sustainable design that doesn't sacrifice performance in cold weather around 20AdegF. The PFC-free, mummy-style Trestles Elite Eco 20Adeg Sleeping Bag - Long fill is made from 96% recycled material and has the lightweight, easy compressibility of the original. HL-ElixR(TM) Eco synthetic insulation uses a unique blend of three fibers for maximum warmth, soft handfeel, and high loft. Wave and blanket construction plus a roomy footbox provide optimal warmth and comfort. A fold-down secondary zipper offers ventilation and easy access.Get the best out of your new Sleeping Bag click here for sleeping bag care instructions. FeaturesFold-Down Second Zipper Provides added Ventilation and Easy Access, Main Zipper Anti-Snag Slider reduces SnaggingAnatomically 3D Footbox increases the insulation and room for your feet, for more Warmth and Comfort"HL-ElixR ECO" Unique Blend of 100% Recycled Fibers Provides Maximum Warmth, Soft Feel and High LoftEN TestedCombination Wave Construction Top provides Maximum Loft and Warmth, Blanket Construction Bottom for the best warmth and comfort under body3D Hood ConstructionExternal Stash PocketSnagless Insulated Draft TubeTwo Hang LoopsCompression Stuff SackStorage BagProduct DetailsMain materials20d 100% Recycled Polyester RipstopBag temperature(AdegC Celsius)-7AdegC CelsiusBag temperature(AdegF Fahrenheit)20AdegF FahrenheitInsulationHL-ElixR(TM) ECOLining30d 100% Recycled Polyester TaffetaPack volume543.1ci >> 8.9 litersWeight2lbs 9oz (1160g)Zipper positionLZStyle number39620