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The Speer Hammocks Frog Sac is a 1 pound 11.5 ounce PrimaLoft insulated sleeping bag rated to 45 °F (7 °C). The Frog Sac is designed for versatility with a full-length center zipper, foot opening, semi-rectangular outline, and locking toggles at the foot and neck openings.


  • Overview
  • In Brief
  • Specifications: Manufacturer, Model, Type, Sizes, Girth, Weight, Fill Type, Loft, Manufacturer's Rating, Outer and Liner Material, Features, Model Year, MSRP
  • Features
  • Performance
  • Durability
  • Value
  • Recommendations for Improvement
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