A mere 1250 grams and extreme temperature specification to -20°C are an unique combination for outdoor sleeping. All this is of course complemented by an inner collar, outer and inner small pocket, warmed YKK two-way zippers and anti-slippery straps. Drape is simply a great newcomer which you just have to get.  The Dinis sleeping bag filled with down feather that provides great heat conditions combining low weight and small package