Extremely lightweight and packable, the Spero is the perfect three-season sleeping bag for backpacking adventures. Trim mummy sleeping bag with a 20-degree F temperature rating and shingle-style construction provides the perfect balance of comfort and performance for extended time on the trail, offering optimizal thermal performance while remaining ultra soft and ultra-compressible for easy packing.
Features
- Extremely lightweight and packable; the perfect three-season sleeping bag for backpacking adventures
- Trim mummy sleeping bag with a 20-degree F temperature rating and shingle-style construction provides the perfect balance of comfort and performance for extended time on the trail
- Eureka! Synthesis technical insulation blends synthetic fibers to optimize thermal performance while remaining ultra soft and ultra-compressible for easy packing
- Comfortable, warm-to-touch peached polyester lining fabric combines with a full-length, insulated zipper draft tube with anti-snag guard to defend against the cold
- Insulated, anatomic hood design and chin baffles help seal in warmth during the night, while the locking, two-way zipper allows adjustments for ventilation
- Internal pocket
- Compression stuff sack
- Mates with women's and long length (left side zipper) mummy style sleeping bags
| Shape | Mummy |
| Temperature Rating | 20 °F / -7 °C |
| EN Limit (Rating For Men) | 17 °F / -8 °C |
| EN Comfort (Rating For Women) | 28 °F / -2 °C |
| Minimum Weight | 3 lbs 1 oz |
| Insulation | Synthetic |
| Insulation Type | Eureka! Synthesis |
| Insulation Weight | 2 lbs 1 oz |
| Stuff Sack Size | 8.5 in x 18 in |
| Construction | Shingled |
| Fits To | 6 ft |
| Size | 78 in x 31 in |