Push further and move faster with the Therm-a-Rest Parsec™ 20F/-6C mummy sleeping bag, bred for alpine starts and ultralight bivys. Engineered for your fast and light adventures, the Parsec delivers lightweight and packable warmth. Just like an alpinist precisely selects his rack or a skier carefully chooses her line, Therm-a-Rest took the time to dial in the small details that create comfort and security in the mountains. After you break camp, the mummy-style bag uses a compression sack to easily fit into your pack without weighing you down. Designed with high-quality materials and Therm-a-Rest performance features like SynergyLink™ Connectors, the Parsec easily handles three-season bivys and long pushes into the backcountry. Bottom line, those that need their sleeping bag to go further choose the Therm-a-Rest Parsec 20F / -6C. Storage sack and compression stuff sack included. Therm-a-Rest Parsec 20F/-6C Regular Features: High-Performance Sustainability 100% Recycled 20D Nylon with DWR 100% Recycled 20D Nylon Lining Sustainable 800 Fill Nikwax Hydrophobic Down™ Responsible Down Standard certified Redesigned SynergyLink™ Connectors No-Fuss YKK Anti-Snag Zipper Refined Fit Tested And Perfected In Onsite Cold Chamber Toe-asis™ Foot Warmer Pocket Ergonomic Toe Box Heat-Trapping Draft Collar Full-Length Zipper Draft Tube, Cinchable Hood External Zip Pocket Blanket Attachment Loops. Compression Sack and Storage Sack Temperature Range Maximum User Height 183g Comfort 0C Transition -6C Risk -23C Weight Approx 805g