SIZE of Compression Bag:14''x 9'' Weight of the Whole Package: 4.2lb- 6.9lb Portable and Light, you can put it in your backpack properly FILL: 12oz/yd² Polyester Insulation, Temperature Rating 32-77 Degree Fahrenheit, warm and comfortable, insulates better when wet than down insulation while it makes sense to keep any sleeping bag dry as much as possible. SEMI-RECTANGLE SHAPE: Pack remarkably small and provides a generous cut at the elbows and knees so side sleepers can shift positions comfortably throughout the night, you can choose your preferred size. Integrated stash pocket allows a watch or lip balm. Weight:4.2-6.9 pounds WATERPROOF& WINDPROOF: 290T Nylon shell fabric is treated with a durable water-repellent (DWR) finish to shrug off moisture; Draft collar and a full-length draft tube provide tucked-in comfort and temperature regulation;Half-circle hood with adjustable drawstring keeps your head warmer even in extreme conditions. FREE COMBINATION& DETACH:Left-side zippers allow the regular sleeping bags to be zipped together with a right-zipper wide bag to create a double bed; Double sleeping bag can be unzipped and separately zip into two individual sleeping bag. Atarshi sleeping bag of all size can unzip into a blanket for car camping.