ThermaRest Saros 20 Long Lightweight 3 Season Sleeping Bag Therm a Rest Parsec 0F 18C sleeping bag review Advnture Thermarest Saros 32F 0C Sleeping bag Hardloop Therm a Rest Saros 0F 18C Sleeping Bag Review TrekSumo Thermarest Questar 18C Down Sleeping Bag Drifters Adventure Centre. Thermarest Saros 0F 18C Sleeping Bag When Canadian winters push temperatures to serious lows and the weather refuses to cooperate, a synthetic bag rated to 0F 18C that performs in damp conditions is a genuinely valuable piece of kit, and the Therm a Rest Saros 0F 18C delivers exactly that. The eraLoft hollow fibre synthetic insulation is the core advantage here over a down bag at this temperature rating. It resists moisture, dries quickly, and maintains its warmth even when wet, which matters on extended winter trips where keeping a down bag dry becomes a full time job. Zoned Insulation concentrates the fill where your body loses the most heat and scales it back where your sleeping pad handles the work underneath, keeping the bag as efficient as possible at this rating. The W. A. R. M. fit was developed and tested in Therm a Rest's onsite cold chamber to provide genuine room for natural sleep positions without opening up cold spots on frigid nights. The Toe asis foot pocket concentrates insulation in the footbox to warm cold feet quickly after a hard day in winter backcountry conditions across Canada. SynergyLink Connectors anchor the bag to your sleeping pad for a connected sleep system that stays put through the night, and they detach when you'd rather use the bag independently. Available in three sizes fitting both men and women. Temperature rating: 0F 18C Insulation: eraLoft synthetic hollow fibre (water resistant, quick drying) Fit: W. A. R. M. (With Additional Room for Multiple positions) Zoned Insulation for targeted warmth efficiency SynergyLink Connectors for pad integration (removable) Toe asis foot warmer pocket Quilt and blanket loops for system layering Features: draft collar, zipper draft tube, snag free zipper, cinchable hood, external zip pocket Includes compression sack and storage sack