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Eureka Spero 20 Sleeping Bag - Mens (-9C/20F)

Eureka Spero 20 Sleeping Bag - Mens (-9C/20F)
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In Regular, Long and Women's. The Spero’s trim, performance shape and shingle-style construction offer maximum warmth in a minimal package for extended time on the trail. Women's model has unique dimensions and insulation levels tailored for optimal women's fit and performance requirements.

  • 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



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 Type

Eureka! Synthesis

Insulation Weight

2 lbs 1 oz

Stuff Sack Size

8.5 in x 18 in



Part Numbers

Option UPC MPN Store SKU
Regular 083826412820 2641282 SLE435077978
Long 083826412837 2641283 SLE497554708