Even when it gets really cold and damp outside, you can count on the Saros 0F/-18C to provide a restful night's sleep. The Saros has eraLoft synthetic insulation that is quick drying and weather resistant. Ideal for hiking and mountaineering in wet weather from spring through fall.The shape of the sleeping bag was perfected in Therm-a-Rest's in-house cold chamber and has a W.A.R.M. shape that allows for different sleeping postures without compromising thermal efficiency. SynergyLink Connectors integrate the Saros with the mat for superior comfort with efficient warmth and maximum freedom of movement for a restful night's sleep. This sleeping bag is available in three sizes to fit both men and women. Compression sack and storage bag included. - Type: Mummy Sleeping Bag - Details: - Length: 183 cm - Hydrophobic down absorbs 90% less moisture and dries three times faster than untreated down - Unsurpassed small pack volume - Connects to a mat for optimal efficiency and comfort - Circumferential side chambers and quick release neck closure eliminate drafts - Certified to Responsible Down Standard - Compression sack and storage bag included Season - Season: Three-season Material - Fill: synthetic fiber - Shell: 20D polyester w/ DWR - Fill Details: eraLoft polyester hollow fiber - Shell Designation: 100% polyester - Lining Material: 20D polyester taffeta - Lining Designation: 100% polyester Sleeping Bag - Category: synthetic fiber sleeping bag - Shape: Mummy shape Temperature range - Comfort temperature (°C): -10 °C - Limit temperature: -18 °C Weight - Sleeping bag: 2240 g - Filling: 1820 g Features - Features: with compression straps.