"Nestle into a cocoon of warmth with the Klymit KSB 20 Sleeping Bag. 650-fill-power down Insulation in the top and synthetic fill Insulation in the bottom sandwich you between layers of coziness in temperatures down to 20°F. Flexible Stretch Baffles keep fill next to your body and stretch when you move for an unrestricted feel. Length Locks let you adjust the bag to your height. A drawcord mummy hood with a draft collar seals in body heat, while a built-out foot box provides plenty of room for comfort. Equipped with an anti-snag, 2-way YKK zipper. This Klymit mummy sleeping bag includes a compression stuff sack. Made of 20-denier nylon. 82""H x 30""W. Weight: 3.1 lbs.Manufacturer model #: 13KHRU20C. 650-fill-power down Insulation in the top Synthetic fill Insulation in the bottom Rated to 20°F Flexible Stretch Baffles keep fill next to your body and stretch when you move Length Locks let you adjust the bag to your height Drawcord mummy hood with a draft collar Built-out foot box Anti-snag, 2-way YKK zipper Includes compression stuff sack"