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The DarkSky 400 Ultra-light 3 Season Sleeping Bag from ZASTRUGI is a highly packable responsible certified standard down sleeping bag. Designed for camping in spring through autumn, the DarkSky 200 is ideal for stretching out your camping season in comfort.


  • 100% Responsible Down Standard certified
  • High warmth to weight ratio 750 fill power down
  • Inner/Outer pockets for phone, headlamp e.t.c
  • Tapered mummy shape
  • Lightweight stitch through baffles
  • Stuff Sack included
Full Description
From £129.99



Zastrugi DarkSky 400 Down Sleeping Bag
In stock £129.99

The DarkSky 400 is Zastrugi's ultralight 3-season down sleeping bag, it's perfect for backpacking and bikepacking when you need more performance than a summer bag. The 750 fill power goose down insulation is 100% Responsible Down Standard (RDS) certified and hydrophobic treated for increased warmth in damp condition.

Fill: 90/10 750FP grey goose down, 400g, RDS certified
Fill power: 750
Fill weight: 400g
Fabric: 20D polyester ripstop
Zipper: YKK 150cm 2-way zipper


190 x 80cm

Pack size (uncompressed): 40 x 18 x 18cm

Temperature ratings

EN ISO 23537-1:2016

  • Comfort: 3c
  • Limit: -2.4c
  • Extreme: -18.5c

Washing Instructions

Wipe clean with a damp, non abrasive cloth.
Do not store your ZASTRUGI sleeping bag compressed or damp as this will affect performance.
To dry, leave in a warm area and keep turning to aerate or tumble dry.

Additional Information

Product Code:SBZAD400

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