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REI Co-op Zephyr 25 Sleeping Bag

Name: REI Co-op Zephyr 25 Sleeping Bag
Price: 39.99 USD
Availability: InStock

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Inclusive sizing lets you find your best fit based on body shape and sleeping preferences
Semifitted mummy shape provides the roomiest fit of our backpacking bags, offering extra room in the knee area to enable a variety of sleeping positions
Recycled shell and lining fabrics feature a nonfluorinated durable water repellent (DWR) finish to help moisture bead up on the surface
100% recycled synthetic polyester insulation is durable and highly compressible; the fill also retains some insulating ability even if it gets damp
Shingle construction on top provides uniform loft and helps prevent insulation from shifting and creating cold spots
Offset quilt construction on the bottom optimizes bag/pad system warmth while reducing unnecessary weight and bulk
Comfortable hood shape works well for all sleep positions and allows for easy integration with a backpacking pillow (not included)
2 differentiated drawcords make the hood easy to adjust while you're zipped in the bag
Insulated muffler and full-length zipper draft tube keep warmth in and cold out
Zipper path wraps around the front of your chest so you can more easily zip and unzip the bag; zipper cover and internal antisnag strip allow for frustration-free zipping
Roomy trapezoidal footbox provides space to move your feet while still remaining warm and cozy
Keep personal items close and easy to access in the interior stash pocket
Includes a stuff sack for packing and a roomy mesh sack 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
Contains materials that meet the bluesign? criteria
REI is Climate Neutral Certified; as we work to actively reduce our footprint, we measure annual carbon emissions and purchase an equivalent amount of verified carbon credits

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 the REI Co-op Zephyr Product LineView all REI Co-op Backpacking Sleeping Bags

Best Use	Backpacking
Tested Lower Limit	17 degrees (F) - ISO
Tested Comfort	28 degrees (F) - ISO
Temperature Rating (F)	25 degrees (F)
Temperature Rating (C)	-4 degrees (C)
Weight	Short Narrow: 2 lbs. 9 oz. Short: 2 lbs. 12 oz. Short Wide: 2 lbs. 14 oz. Medium Narrow: 2 lbs. 13 oz. Medium: 3 lbs. Medium Wide: 3 lbs. 3 oz. Long Narrow: 3 lbs. 2 oz. Long: 3 lbs. 4 oz. Long Wide: 3 lbs. 8 oz.
Shell	Recycled ripstop nylon (bluesign approved)
Zipper Location	Left
Insulation Type	Synthetic
Fill	Recycled PET polyester
Fill Weight	Short Narrow: 1 lb. 13.8 oz. Short: 2 lbs. 0.4 oz. Short Wide: 2 lbs. 2.2 oz. Medium Narrow: 2 lbs. 1.4 oz. Medium: 2 lbs. 3.5 oz. Medium Wide: 2 lbs. 5.4 oz. Long Narrow: 2 lbs. 5.5 oz. Long: 2 lbs. 6.7 oz. Long Wide: 2 lbs. 9.8 oz.
Sleeping Capacity	1-person
Lining	20-denier recycled nylon (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: 7.75 x 12.5 inches Short: 7.75 x 12.5 inches Short Wide: 7.75 x 12.5 inches Medium Narrow: 7.75 x 12.5 inches Medium: 7.75 x 12.5 inches Medium Wide: 7.75 x 12.5 inches Long Narrow: 7.75 x 12.5 inches Long: 7.75 x 12.5 inches Long Wide: 8.25 x 14.5 inches
Stuff Sack Volume	Short Narrow: 10 liters Short: 10 liters Short Wide: 10 liters Medium Narrow: 10 liters Medium: 10 liters Medium Wide: 10 liters Long Narrow: 10 liters Long: 10 liters Long Wide: 12.5 liters
Compressed Volume	Short Narrow: 6.8 liters Short: 7.3 liters Short Wide: 8.1 liters Medium Narrow: 7.8 liters Medium: 8.3 liters Medium Wide: 8.7 liters Long Narrow: 8.8 liters Long: 8.9 liters Long Wide: 10.3 liters
Gender	Unisex
Sustainability	Contains materials that meet the bluesign? criteria Contains recycled materials From a Climate Neutral Certified brand

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