When temperatures plunge and the stakes are high, the Ultralight White Goose Down Envelope Sleeping Bag delivers. Filled with premium white goose down and rated for extreme cold from -10°C to -20°C, this bag is engineered for serious winter camping, high-altitude expeditions, and sub-zero adventures. The integrated hood cap adds critical warmth at the head — the area where most body heat is lost — while the envelope design provides more room to move than a traditional mummy bag.
Available in five fill weights — 400g, 600g, 800g, 1000g, and 1200g — and four colour options, you can dial in exactly the insulation level your conditions demand. At 210 × 80 cm, it fits adults up to 1.8 m comfortably, and the splicing zipper lets you connect two bags for a double configuration.
Specifications
| Specification |
Detail |
| Style |
Envelope with Hood Cap |
| Filling |
White Goose Down |
| Shell Fabric |
Nylon (Water-Resistant) |
| Temperature Rating |
-10°C to -20°C |
| Season |
Winter / Extreme Cold |
| Unfolded Size |
210 × 80 cm |
| Suitable Height |
Up to 1.8 m |
| Fill Weight Options |
400g / 600g / 800g / 1000g / 1200g |
| Splicing |
Yes – single or double configuration |
| Applicable Users |
Adults |
| Available Colors |
Black, Grey, Red, Blue Black, Red Black |
Fill Weight Guide
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400g: Mild cold — suitable for early winter or high-altitude spring/autumn
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600g: Moderate cold — reliable winter camping performance
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800g: Serious cold — for consistent sub-zero conditions
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1000g: Extreme cold — high-altitude and deep winter expeditions
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1200g: Maximum insulation — for the most demanding cold-weather conditions
Why Choose This Down Envelope Bag?
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White Goose Down Fill: Premium natural insulation with exceptional warmth-to-weight ratio — stays lofty and effective in cold, dry conditions.
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Integrated Hood Cap: Covers the head and neck — the area responsible for the most heat loss — for critical warmth in extreme cold.
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Five Fill Weights: Match your insulation precisely to your conditions — from mild cold to extreme sub-zero.
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Envelope Design: More room to move than a mummy bag — better for campers who sleep restlessly or prefer more space.
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Ultralight Nylon Shell: Durable and water-resistant, keeping the down fill dry and the bag lightweight.
Ideal For
- Extreme winter camping and sub-zero expeditions
- High-altitude trekking and mountaineering
- Cold-weather backpacking where warmth-to-weight matters
- Campers who prefer envelope style over mummy bags
- Adults needing maximum insulation in a packable format
In the Box
- 1 × White Goose Down Envelope Sleeping Bag with Hood Cap (fill weight & colour as selected)
- 1 × Compression storage bag
