Built to perform in below-freezing temperatures, the Bellyache Mountain SL 17 Sleeping Bag features 700-fill water-repellent DownTek down, a traditional mummy shape and durable nylon fabric - making it ideal for staying warm and cozy while getting a good night’s sleep.
Shell: nylon; Lining: nylon taffeta
700-fill DownTek water-repellent down insulation
Traditional mummy shape provides efficient warmth
17F-degree temperature rating
Draft collar, draft wedge and draft zipper lock air and wind out
Left and right zip bags mate together
Insotect Flow construction strategically distributes heat