Designed for Fast and Light adventures, the Parsec offers extra lightweight and packable warmth. Every mountain professional chooses his equipment carefully. And it is this approach that has led Therm-a-Rest to take care of every detail to provide comfort and protection in the mountains. This mummy-like sleeping bag has a compression stuff sack that fits in any backpack without adding weight. The design is based on high-quality materials and quality features of Therm-a-Rest such as SynergyLink Connectors, which make the Parsec a faithful companion in three seasons. Simply put: Those who want to be independent in the far distance opt for the Parsec. Storage bag and compression stuff sack included. SynergyLink ConnectorsBy integrating the mat and sleeping bag, SynergyLink Connectors ensure that you don't roll off the mat while you sleep - without constricting. Two elastic straps can be adjusted to fit any mat up to 63.5 cm wide. Nikwax water repellent downThe water-repellent Nikwax down used in all Therm-a-Rest down sleeping bags and camping quilts dries three times faster than untreated down and clumps 30 times later compared to untreated down. They also absorb up to 70% less moisture than untreated down.