As low as €339.00

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4-7 working days

The Mysterious Traveller series features sleeping bags of a classic construction, tested out by hundreds of users. Their trapezoid chambers and remarkable 700 FP Polish goose down will ensure your warmth until late autumn or even longer. The sleeping bags use the almost indestructible 35-gram Pertex® Quantum fabric that has our full trust. A slightly wider fit than in spring and summer models enables you to use supplementary insulation, such as additional clothes or a liner. With 700 g of down, Mysterious Traveller 700 weighs 1110 g, making it one of the lightest 3-season sleeping bags within its price range. The Mysterious Traveller series is perfect for users looking for a lightweight sleeping bag for chilly nights at a reasonable price.

More Information
Down quality700 FP
Total weight1110 g
Down weight700 g
Weight of unfilled sleeping bag410 g
Comfort temperature-5 ℃
Limit temperature-12 ℃
Extreme temperature-31 ℃
Maximum user height190 cm
Length208 cm
Width (top/bottom)80/55 cm
Stuffsack’s dimensions (height/diameter)29/19 cm
Stuffsack’s volume8 l
Number of down chambers36
Product features
  • Fill: 700 Fill Power ethically sourced Polish goose down
  • Shell and liner: Pertex® Quantum 35 g/m², 20-denier ripstop, DWR finish (100% nylon)
  • Full length, 5 mm YKK® zip with 2 self-locking sliders
  • Zip slider with anti-snag system
  • Independent collar with 3D design
  • Down-filled zip insulating tube
  • Mummy shape
  • 3D shaped hood design
  • Construction: Trapezoid chamber design
  • Differencial cut design
  • Separately filled front and bottom
  • Inner pocket for small items
  • Can be opened and ventilated at the footbox
  • Can be combined with other sleeping bags
  • Hang loops for storage and drying
  • Stuffsack and storage sack included

Expert quality


Years of breeding experience, a specific climate and research facilities are the secrets behind the excellent parameters of Polish down, which is considered to be the best in the world. Despite technological advancement and attempts to make artificial insulation that would be just as reliable, down still remains unrivaled.

Ethical sourcing

We only use down from certified Polish producers. Thanks to their geographical proximity, we can monitor the production. We are absolutely sure down used by Cumulus has been ethically sourced. It is from free-range geese that have access to water. The excellent breeding conditions are also reflected in the down’s high quality.


Pertex® and Toray®, two fabrics we commonly use in our products, are made in Japan. Renowned in the outdoor world, they are both high-performers and have an impressive resilience considering their lightweight structure. At 19g/m2 Toray Airtastic® is the lightest downproof fabric in the world.


YKK® is the most trustworthy zip producer in the world, whose zips highly outperform the competition. Almost all our products feature YKK® zip - from clothing, accessories, to sleeping bags.