Ideal for backpacking spring through fall, the men’s REI Co-op Zephyr 25 recycled sleeping bag is our top synthetic design—light, compressible, cozy, and now with recycled materials throughout.
Features
- 100% recycled synthetic polyester insulation is durable and highly compressible; the fill also retains some insulating ability if it gets wet
- Shingle construction on top provides uniform loft and prevents insulation from shifting and creating cold spots
- Offset quilt construction on the bottom optimizes bag/pad system warmth while reducing unnecessary weight and bulk
- Mummy shape is thermally efficient, yet roomy enough from shoulder to knee to ensure sleeping comfort
- Trapezoidal footbox gives room to wiggle toes and the baffle in the toe box holds extra insulation in place to help keep feet warm
- Hood, insulated muffler and full-length zipper draft tube keep warmth in and cold out; hood conforms to the head and can accommodate a backpacking pillow
- Zipper cover and internal antisnag strip combine for easy zipping
- Stash pocket under collar holds small essentials
- Differentiated drawcords allow quick hood and neck adjustments in the dark
- 100% ripstop recycled polyester shell offers durability with abrasion- and tear-resistance for years of use
- Durable water repellent (DWR) finish on shell helps keep bag from getting damp if it comes in contact with condensation on tent walls
- 100% recycled nylon liner is soft and silky for freedom of movement
- Nylon stuff sack and polyester storage bag are included
Imported.
Technical Specs
| Best Use | Backpacking |
|---|---|
| Tested Lower Limit | 25 degrees (F) – ISO |
| Tested Comfort | 38 degrees (F) – ISO |
| Temperature Rating (F) | 25 degrees (F) |
| Temperature Rating (C) | -3.9 degrees (C) |
| Weight | Regular – Left Zip: 2 lbs. 11 oz. Long – Left Zip: 2 lbs. 15 oz. |
| Shell | Ripstop recycled polyester (bluesign® approved) |
| Zipper Location | Left |
| Insulation Type | Synthetic |
| Fill | Recycled polyester fibers |
| Lining | Recycled nylon (bluesign® approved) |
| Sleeping Bag Shape | Mummy |
| Fits Up To (in.) | Regular – Left Zip: 72 inches Long – Left Zip: 78 inches |
| Shoulder Girth (in.) | 62 inches |
| Hip Girth (in.) | 56 inches |
| Stuff Sack Size | 7.75 x 16.5 inches |
| Stuff Sack Volume | 10 liters |
| Compressed Volume | Regular – Left Zip: 7.8 liters Long – Left Zip: 8.9 liters |
| Gender | Men’s |
| Sustainability | Contains materials that meet the bluesign® criteria Contains recycled materials |

























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