Can withstand temperatures down to 20 degrees Fahrenheit (-6.7 degrees Celsius)5 lbs. (2.27 kg.) of Poly-Therm hollow synthetic insulation, will not lose insulating efficiency if wetPolyester shell and cotton flannel linerFeatures a nylon coil zipperIncludes a compression sack that shrinks down the size of your bag to free up space75" L x 33" W x 4" H