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Sea to Summit - Trek I Sleeping Bag

Availability: Out of stock

Stock #: F538-

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Incorporating 2D PermaShell™ fabric and a premium 650+ Loft ULTRA-DRY Down™, the Trek bags are a refined classic. The 60/40 fill ratio in the Trek bags is maintained using a side block baffle and differential cut shell. In the top of the shell a 3D side wall, a feature normally reserved for technical alpine sleeping bags, provides more space for the down to loft right to the edge of the bag.


  • Tapered rectangular shape
  • 2D PermaShell™ DWR shell fabric
  • Differential cut shell with 3D side walls
  • 60/40 fill ratio; side block baffle
  • Zipper draft tube with anti-snag strip
  • Cushioned internal hood drawcord with dual adjustment
  • 2 way YKK® #5 zippers with separate foot zip
  • Large sized internal zipper pocket
  • Includes lightweight Ultra-Sil® compression bag, mesh storage cell and laundry bag.

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