The mummy shape gives you room where you need it and saves bulk where you don't, and also comes with a drawcord adjuster so you can burrow into the hood to save your head and shoulders from being exposed to the cold air overnight. Filled with lightweight synthetic fill and shielded by a ripstop outer, the Transition 400 will be a reliable companion on all your wild sleeping adventures. Mummy-shaped bag with internal bungee adjustor cordLightweight synthetic insulationNylon Ripstop outerLeft-sided zipInner pocketSeason rating: 4Comfort rating: -2°CLimit rating: -8°CExtreme rating: -26°CDimensions: 220x80cmWeight: 2.15kg