The Cosmic 20 is a three-season, synthetic bag that has great value and excellent tech. Budget-minded adventurers in wet or dry climates will appreciate how comfortable and stylish this bag is. CloudLoft Pro insulation keeps you warm on those colder nights. The 50D polyester taffeta shell and liner construction keep you nice and comfy. 58in two-way locking zipper provides easy entry and exit. The gound-level side seams and differential cut offers maximum warmth. The included stuffsack makes for easy pack-and-go. Regular length for the average height adult.