Trek TkIII 10F

$378.95 - $398.95


Ultralight and compact with a roomy shape for travel or trail

The Sea to Summit Trek down sleeping bag brings the comfort of a tapered rectangular shape and the versatility of a dual-zip ventilation system to wherever your travels may take you. The full-length side zipper and secondary footbox zipper allow you to increase ventilation or open the Trek completely flat like a comforter, and the quality down will keep you warm and snug on chilly nights.
The broader cut gives you room to move inside the bag, regardless of the sleeping position you may adopt.
Light and compact, the Trek might just become your favorite trekking / backpacking / travel / camping down sleeping bag.


Brand Name:
Sea to Summit
Bag Style:
Seasonal Usage:
Three Season
Temp Rating:
10° F
Temp Rating Celsius:
-12° C
ULTRA-DRY Down 650+ Loft; RDS-certified
Regular: 2 lbs 10 oz / 1190 g
Long: 2 lbs 14.2 oz / 1310 g
Fill Weight:
Regular: 24.7 oz / 700 g
Long: 27.5 oz / 780 g
Bag Length:
Regular: fits users up to 6 ft / 183 cm
Long: fits users up to 6 ft 4 in / 192 cm
Circumference at Chest:
Regular: 60 in / 152 cm
Long: 64 in / 162 cm
Circumference at Hips:
Regular: 57 in / 146 cm
Long: 62 in / 157
Circumference at Foot:
Regular: 40 in / 102 cm
Long: 43 in / 108 cm
Bag Shell Material:
30D Nylon
Bag Stuff Size:
8.4L volume compressed using included compression sack
Other Features:
• ULTRA-DRY Down 650+ Loft 85% Down Cluster Premium Duck Down certified Responsible Down Standard (RDS)
• Tapered rectangular cut offers more space than a mummy bag
• Vertical chest baffles prevent down migration and cold spots
• 3D sidewall baffle maximizes loft right to the edge of the bag
• Soft-touch 20D lining fabric is lightweight and highly breathable
• Durable 30D nylon shell
• Two-way full-length YKK® #5 main side zip and foot box zip provide superior ventilation and allow the bag to be used as a comforter
• Shaped hood and oversized anti-snag zipper draft tubes to seal in warmth and keep cold out
• Internal pocket for phone / GPS / valuables
• Form a snug double sleeping bag by zipping to any Altitude™, Journey™ or Venture™ sleeping bag
• Includes lightweight Ultra-Sil™ compression bag and storage cell

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