Incredibly compact and light: The Pajak Prime Alpine down sleeping bag is an excellent choice not only for climbing and mountaineering, but also for cycling, trekking, backpacking, sailing and hill walking. This high-quality mummy bag only weighs 510g and packs down to 2.5l. The stuff sack supplied with the bag weighs an additional 29g, so you may even be able to fit it inside one of your jacket pockets! If that doesnt work, you can stuff it in your pack without any problems! The Prime Alpine down sleeping bag was designed for use in spring and summer and has a comfort temperature of 6°C. The minimum extreme temperature for the bag according to Pajak is -14°C. The high-quality Z chambers are filled with 220g of goose down and effectively prevents cold spots. With a fill power of 750 cuin and a down-to-feather ratio of 95/5, the Prime Alpine down sleeping bag is guaranteed to provide a perfect balance of maximal warmth at minimal weight.