Rumpl Wrap Sack 20deg Sleeping Bag That's A Wrap! The Wrap Sack replaces the traditional mummy bag with a rectangular design featuring unzippable wing panels for genuine temperature flexibility. Zip both wings for 20degF protection, unzip one for 35degF comfort, or fully open it as a blanket on warm nights. Features Wrap Adapt(TM) wing system, unzip panels to adjust warmth from 20degF to blanket mode Full-length zippers, enables venting and partial opening without full unzip Pillow pocket hood, integrated support compatible with Rumpl Camp Pillows100% recycled insulation, Nano Loft synthetic down and Renewa Loft polyester Machine washable, easy care and maintenance for extended trips Specifications SPECIFICATIONSTemperature (2 Layers)20degF Limit / 30degF Comfort Temperature (1 Layer)35degF Limit / 45degF Comfort Weight5 lbs (2. 27 kg)Dimensions35" W x 82" LMaterials100% recycled polyester with PFAS-free DWR | Rumpl | Wrap Sack | Polyester