How to Choose Sleeping Bags for Backpacking
REI Co-op Radiant 20 Sleeping Bag
$199.00
Members get an est. $19.90 in rewards
Cool-weather backpacking? The REI Co-op Radiant 20 sleeping bag has zonal insulation to keep you warm, plus ample space for toss-and-turn comfort. Nine different sizes help you find the perfect fit.
Key Details
Fill
600-fill-power down (bluesign approved); draft collar, draft tube & footbox panel: recycled PET polyester
Weight
Short Narrow: 2 lbs. 4.5 oz.
Short: 2 lbs. 7 oz.
Short Wide: 2 lbs. 9 oz.
Medium Narrow: 2 lbs. 8 oz.
Medium: 2 lbs. 11 oz.
Medium Wide: 2 lbs. 12 oz.
Long Narrow: 2 lbs. 8 oz.
Long: 2 lbs. 14 oz.
Long Wide: 3 lbs.
Compressed Volume
Short Narrow: 5.5 liters
Short: 5.9 liters
Short Wide: 6.4 liters
Medium Narrow: 6 liters
Medium: 6.7 liters
Medium Wide: 7 liters
Long Narrow: 6.7 liters
Long: 7.4 liters
Long Wide: 7.6 liters
Temperature Rating (F)
19 degrees (F)
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- Inclusive sizing lets you find your best fit based on body shape and sleeping preferences
- Semifitted shape provides the roomiest fit of our backpacking bags, with extra knee room to accommodate a variety of sleeping positions
- 600-fill-power down provides excellent loft, lightweight warmth and compresses small
- Strategically placed synthetic insulation in the footbox provides additional protection against tent wall dampness
- Nonfluorinated durable water repellent (DWR) finish on the shell and lining helps moisture bead up on the surface
- Contoured hood pattern fits more naturally to your head and accommodates most backpacking pillows
- Draft tube, draft collar and face muffler keep warmth in and cold out
- Trapezoidal footbox provides foot comfort
- Zipper cover and internal antisnag strip combine for easy zipping
- Differentiated drawcords let you adjust hood and neck easily in the dark
- Interior stash pocket for storing small, quick-access items
- Includes a nylon stuff sack for packing and a roomy mesh bag for breathable storage
- Hand-wash or machine wash warm, gentle cycle in front-load washer only; do not bleach; rinse thoroughly; do not wring; air dry or tumble dry low; do not iron or dry clean
- This product contains RDS-certified down certified by Bureau Veritas TE-00104632
- The purchase of Responsible Down Standard (RDS) certified products demonstrates demand for animal welfare practices in the down and feather supply chain
- Contains materials that meet the bluesign® criteria
- REI Co-op brand is certified to The Climate Label; we actively fund efforts to reduce carbon emissions across our business and support climate projects around the world
Imported.
Temperature ratings are intended as a guideline to help you compare products, rather than a guarantee of warmth, since many different factors contribute to your comfort while you sleep. Our backpacking bags are rated for temperature according to an independent testing protocol: International Organization for Standardization (ISO) 23537. Testing is based on a person wearing one base layer and a pair of socks, sleeping on an insulated surface with a minimum R-value of 5.38.
Each bag then gets 2 ratings: the Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. For REI Co-op brand nongendered sleeping bags, we provide an overall temperature rating that falls between the Comfort and Lower Limit ratings.
View all REI Co-op Backpacking Sleeping BagsEach bag then gets 2 ratings: the Comfort rating is the lowest temperature at which the bag will keep the average "cold sleeper" comfortable, and the Lower Limit rating is the lowest temperature at which the bag will keep the average "warm sleeper" comfortable. For REI Co-op brand nongendered sleeping bags, we provide an overall temperature rating that falls between the Comfort and Lower Limit ratings.
| Best Use | Backpacking |
|---|---|
| Tested Lower Limit | 13 degrees (F) - ISO |
| Tested Comfort | 25 degrees (F) - ISO |
| Temperature Rating (F) | 19 degrees (F) |
| Temperature Rating (C) | -7 degrees (C) |
| Weight | Short Narrow: 2 lbs. 4.5 oz. Short: 2 lbs. 7 oz. Short Wide: 2 lbs. 9 oz. Medium Narrow: 2 lbs. 8 oz. Medium: 2 lbs. 11 oz. Medium Wide: 2 lbs. 12 oz. Long Narrow: 2 lbs. 8 oz. Long: 2 lbs. 14 oz. Long Wide: 3 lbs. |
| Shell | Recycled polyester (bluesign approved) |
| Zipper Location | Left |
| Insulation Type | Down / Synthetic Blend |
| Fill | 600-fill-power down (bluesign approved); draft collar, draft tube & footbox panel: recycled PET polyester |
| Fill Weight | Short Narrow: 1 lb. 5.4 oz. Short: 1 lb. 6.9 oz. Short Wide: 1 lb. 8.2 oz. Medium Narrow: 1 lb. 7.5 oz. Medium: 1 lb. 9.4 oz. Medium Wide: 1 lb. 10.7 oz. Long Narrow: 1 lb. 9.5 oz. Long: 1 lb. 11.1 oz. Long Wide: 1 lb. 12.6 oz. |
| Sleeping Capacity | 1-person |
| Lining | Recycled polyester (bluesign approved) |
| Sleeping Bag Shape | Mummy |
| Fits Up To (in.) | Short Narrow: 65 inches Short: 65 inches Short Wide: 65 inches Medium Narrow: 71 inches Medium: 71 inches Medium Wide: 71 inches Long Narrow: 77 inches Long: 77 inches Long Wide: 77 inches |
| Shoulder Girth (in.) | Short Narrow: 58 inches Short: 65.5 inches Short Wide: 73 inches Medium Narrow: 59 inches Medium: 66.5 inches Medium Wide: 74 inches Long Narrow: 60 inches Long: 67.5 inches Long Wide: 75 inches |
| Hip Girth (in.) | Short Narrow: 48.5 inches Short: 56 inches Short Wide: 64.5 inches Medium Narrow: 49.5 inches Medium: 57 inches Medium Wide: 65.5 inches Long Narrow: 50.5 inches Long: 58 inches Long Wide: 66.5 inches |
| Stuff Sack Size | Short Narrow: 7 x 11.75 inches Short: 7 x 11.75 inches Short Wide: 7 x 11.75 inches Medium Narrow: 7 x 11.75 inches Medium: 8.5 x 13 inches Medium Wide: 8.5 x 13 inches Long Narrow: 8.5 x 13 inches Long: 8.5 x 13 inches Long Wide: 8.5 x 13 inches |
| Stuff Sack Volume | Short Narrow: 7.5 liters Short: 7.5 liters Short Wide: 7.5 liters Medium Narrow: 7.5 liters Medium: 10 liters Medium Wide: 10 liters Long Narrow: 10 liters Long: 10 liters Long Wide: 10 liters |
| Compressed Volume | Short Narrow: 5.5 liters Short: 5.9 liters Short Wide: 6.4 liters Medium Narrow: 6 liters Medium: 6.7 liters Medium Wide: 7 liters Long Narrow: 6.7 liters Long: 7.4 liters Long Wide: 7.6 liters |
| Gender | Unisex |
| Sustainability | Contains recycled materials Contains materials that meet the bluesign® criteria From a Climate Label Certified brand |
