Many sleeping bags are rated for temperature by an independent testing protocol. With both European Norm (EN) 13537 and International Organization for Standardization (ISO) 23537 testing, each bag gets a Comfort (or T-Comfort) rating and Lower Limit (or T-Limit) rating.
The Comfort/T-Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit/T-Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. Ratings are based on a person wearing one long underwear layer and a hat, sleeping on a single 1 in. thick insulating pad. Many brands use the Comfort rating for women's bags and the Lower rating for men's and unisex bags. Everyone's body and sleep comfort differ, so EN and ISO ratings are simply a guideline to help you compare products.
- Classic Spoon™ shape packs remarkably small and provides a generous cut at
- the elbows and knees so side sleepers can shift positions comfortably throughout the night
- Premium 650-fill-power down insulation is hydrophobic and PFC-free; RDS certification ensures traceability throughout the supply chain
- 30-denier ripstop nylon shell fabric is treated with a durable water-repellent (DWR) finish to shrug off moisture; 30-denier nylon taffeta lining also has a DWR finish
- Thermo Gills™ let you vent body heat to help regulate temperature without letting cold drafts in
- Blanket Fold™ external draft collar and a full-length draft tube provide tucked-in comfort and temperature regulation
- Waterproof/breathable footbox withstands tent condensation to help your feet stay warm and dry
- Right-side zippers allow the bag to be zipped together with a left-zipper bag (not included) to create a double bed
- Full-length, 2-way #5 YKK zipper with zipper plow makes getting in and out of the bag a breeze
- Integrated pillow pocket allows a jacket, extra clothes, or Fillo™ (not included) to be stuffed into the sleeve opening for secure, elevated support through the night
- Covered by a NEMO lifetime warranty
Best Use Backpacking
Tested Lower Limit 5 degrees (F) - ISO
Tested Comfort 17 degrees (F) - ISO
Temperature Rating (F) 17 degrees (F)
Temperature Rating (C) -8.33 degrees (C)
Weight Regular - Right Zip: 3 lbs. 1 oz.
Shell 30-denier ripstop nylon
Zipper Location Right
Insulation Type Down
Water-Resistant Down Yes
Fill 650-fill-power down
Fill Weight
Regular - Right Zip: 1 lb. 13 oz.
Lining 30-denier nylon taffeta with DWR
Sleeping Bag Shape Semirectangular
Fits Up To (in.)
Regular - Right Zip: 66 inches
Shoulder Girth (in.)
Regular - Right Zip: 62 inches
Hip Girth (in.)
Regular - Right Zip: 58 inches
Stuff Sack Size 8.5 x 12.5 inches
Stuff Sack Volume 12.2 liters
Compressed Volume Regular - Right Zip: 9 liters
Gender Women's
Sustainability Down certified to the Responsible Down Standard (RDS)
