Synthetic Fill Sleeping Bags at Backcountry Edge

Mountainsmith Boreas 40 Degree Sleeping Bag

The Mountainsmith Boreas 40 Degree sleeping bag balances reliable performance and affordability. A roomy rectangular cut and synthetic fill make the Boreas 40 Degree a comfortable option for mild-weather camping or backpacking.

Mountainsmith
Boreas 40 Degree

  • 40 Degrees F
  • Synthetic
  • Reg. Price: $89.94
    $71.95
  • Free shipping plus free returns
  • Out of stock.
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Affordable alternative to down fill; maintains insulating qualities even when wet

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  • Sleeping Bags
    • Synthetic Fill
      • 20-40 Degree
        • Rectangular & Semi-Rectangular Bags

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  • Mountainsmith Boreas 40 Sleeping Bag   Product Demo: Mountainsmith Boreas 40 Sleeping Bag
  • Mountainsmith Synthetic Sleeping Bags   Tech Talk: Mountainsmith Synthetic Sleeping Bags