Sea to Summit TkII


SKU: 9327868023400 Category:


The classic tapered rectangular sleeping bag with superior specs.

Incorporating our 2D PermaShell™ fabric and a premium 650 loft 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.

An oversized security pocket located inside the bag is easily accessible, ideal for stashing passports and other valuables while travelling. The soft touch lining fabric is down proof by construction and highly breathable offering a comfortable sleep.

The Trek series is the choice for adventure travel and globe-trotting.

The tapered rectangular design offers a good compromise between the comfort of a generous cut shape and warmth of a closer fit. A full length side and foot zip allow the Trek series to be opened out into a full duvet for use indoors and warm weather.


  • Tapered rectangular, 2D PermaShell™
  • DWR shell fabric
  • Differential cut shell with 3D side walls
  • 60/40 fill ratio
  • Side block baffle
  • Zip draft tube with
  • Anti-snag, cushioned internal hood drawcord with dual adjustment
  • 2 way YKK #5 zips with separate foot zip
  • Large sized internal zip pocket
  • Lightweight Ultra-Sil® compression bag
  • Mesh storage cell
  • Laundry bag

Additional information

Weight 1.020 kg
Fill Specifications

Duck Down minimum 650+ loft. Short 500 g, Regular 500 g, Long 550 g

Temperature range (C)

comfort: -1, lower limit -8


2D PermaShell (nylon, water resistant)

Sleeping Bag Size

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