Therm-a-Rest Parsec 20F/-6C is a sleeping bag designed to offer maximum comfort while meeting high lightweight standards, the award-winning Parsec 20F/-6C sleeping bag is the ideal choice when you only need one bag to go from early spring to late autumn. Filled with highly compressible 800lb Nikwax Hydrophobic Down™ that absorbs 90% less water and dries three times faster than untreated down, the Parsec offers superior performance in wet weather. Updated for 2022, the ultra-lightweight 20-denier GRS-certified recycled nylon shell saves weight, maintains durability and is environmentally friendly, while the new YKK® anti-slip zip facilitates entry and exit and prevents accidental rips. Improved SynergyLink™ connectors wrap around the mattress to allow freedom of movement without moving off the mattress and losing heat. The improved shape further increases efficiency, reducing the weight by up to 2 oz (57 g) compared to the previous version, while the down-lined Toe-asis™ foot pocket keeps feet undeniably warm. Whether it's your first bag or your next, the Parsec is ready to become your one and only bag. Therm-a-Rest Parsec 20F/-6C sleeping bag