The Singi 3 Season Long Sleeping Bag from Fjallraven is a convenient down sleeping bag that offers a lot of warmth in relation to its weight. Takes up little space in the pack. Perfect for three-season use. Padded with high quality down that has been distributed for optimal insulation, with extra down on top and in the sections covering the body\'s core and feet. The head section is very warm and has a down-padded thermal collar with a drawcord adjustment that traps the heat inside the sleeping bag.