Dialed in for backpacking adventures, the fully-featured, award-winning Therm-a-Rest Questar 20-Degree Lightweight Down Mummy Sleeping Bag delivers three-season comfort with 650 fill Nikwax Hydrophobic Down. Therm-a-Rest has loaded this bag with comfort features such as SynergyLink Connectors to integrate the bag with a sleeping pad while allowing Zoned Insulation to keep fill where it's needed most. Perfected in Therm-a-Rest's onsite cold chamber, the W.A.R.M. fit allows room for multiple sleep positions without compromising thermal efficiency. The 650 fill Hydrophobic Down insulation, enclosed in 20D ripstop polyester with a durable water repellent finish, absorbs 40 percent less moisture and dries three times faster than untreated down. Mummy construction features a cinchable hood, insulated toe pocket, left side zipper and a zipper draft tube and draft collar keep out the cold. Designed to fit both men and women and available in three sizes: Small measures 73x29x4.5 inches, fits heights up to 5 foot 6 inches, and weighs 1.88 pounds; Regular measures 80x31.5x4.5 inches, fits heights up to 6 feet, and weighs 2.19 pounds; Long measures 85x33x4.5 inches, fits heights up to 6 feet 6 inches, and weighs 2.44 pounds. All sizes pack to 7.5x9 inches. Storage sack and compression sack included. Limited lifetime warranty.