The Spero’s trim, performance shape and shingle-style construction offer maximum warmth in a minimal package for extended time on the trail. In Regular, Long and Women's. Women's model has unique dimensions and insulation levels tailored for optimal women's fit and performance requirements.

This product will be shipped directly from EUREKA and will leave their warehouse in 2-3 business days. Eligible for ground shipping only.

• Shingle-style construction provides the perfect balance of comfort and performance
• Comfortable, warm-to-touch peached polyester lining fabric
• Locking, 2-way zipper allows adjustments for ventilation
• Full-length, insulated zipper draft tube with anti-snag guard defends against cold air intrusion
• Mates with women's and long length (left side zipper) mummy style sleeping bags
• Anatomic hood design
• Insulated hood and chin baffles seal in warmth
• Internal pocket
• Compression stuff sack
• Eureka! Synthesis technical insulation is Eureka’s lightest, most-compressible, and resilient insulation. The proprietary blend of synthetic fibers is engineered to optimize thermal performance in an ultra-soft, easy to pack, and durable sleeping bag fit for any adventure
• Shape: Mummy
• Temperature Rating: 20 °F / -7 °C
• Minimum Weight: 3 lbs 4 oz
• Insulation: Synthetic
• Insulation Type: Eureka! Synthesis
• Insulation Weight: 2 lbs 3 oz
• Stuff Sack Size: 9 in x 18 in
• Construction: Shingled
• Fits To: 6 ft 6 in
• Size: 84 in x 33 in