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Mountainsmith Boreas 40-degree Synthetic Sleeping Bag

by Mountainsmith
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ITEM# 14089752
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ITEM#: 14089752

The Boreas 40-degree synthetic sleeping bag from Mountainsmith features a relaxed hooded rectangular camp style design. This sleeping bag accommodates a host of features including a poly compression stuffsack and anti-snag zipper reinforcement.

  • Brand: Mountainsmith
  • Boreas 40-degree Synthetic Sleeping Bag
  • Model: 12-1049-04
  • Mountainloft hollowfibers: 0.68 kg fill weight
  • Shell: 75dx240t Diamond Poly Ripstop W/R, CIRE
  • Liner: 50dx290t Taffeta Poly W/R, CIRE
  • Relaxed hooded rectangular style
  • Offset quilt construction,
  • Right hand zip
  • Anti-snag zipper reinforcement
  • Compression stuff sack included
  • Temp rating 40-degrees Fahrenheit/4.5-degrees Celsius
  • Zips out flat for blanket style if needed
  • Shoulder girth: 68 inches
  • Stuffed dimensions: 16 inches high x 9 inches wide
  • Dimensions: 82 inches long x 34 inches wide x 5 inches deep


Rated To 40 Degree
Insulation Type Synthetic
Color Blue
Fits Up To Greater than 6 ft. 6 in.
Gender Men's
Sleeping Bag Shape Rectangular
Dimensions See Details
Warranty Limited Lifetime
Model Number 12-1049-04
Country of Origin China

Questions & Answers

  • Q:

    "can two of these bags be zipped together to form a double"

    • A:


  • Q:

    "What is the pack weight of this sleeping bag?"

    • A:

      The ship weight of this item is 0.1 pound.

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Shipping Information:

Our standard shipping method is ground shipping. We also offer expedited shipping for most items. Your final shipping cost and estimated delivery timeframe will be available at checkout.
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Standard Return Policy:

Items must be returned in new or unused condition and contain all original materials included with the shipment. More Details

FINAL SALE EXCLUSION: Items marked as FINAL SALE are not returnable unless the problem you experience is the result of our error.

For your protection, all orders are screened for security purposes. If your order is selected for review, our Loss Prevention Team may contact you by phone or email. There may be a two business day delay to process your order.

** Most Oversize orders are delivered within 1-4 weeks. Some orders may take 6 weeks to be delivered.