Store star ratings run high (most products average above 4.3), so they count less than written reviews.
One Planet Nitrous -3 2025








One Planet Nitrous -3 2025
| Material | Ethically sourced hydrophobic down, 10 denier vapor vent fabric |
|---|---|
| Weight | 557 g (Small), 598 g (Regular), 637 g (Large) |
| Comfort Rating | 3°C |
| Down Loft | 800-850 |
| Extreme Rating | 18°C (Standard woman, survival use only) |
| Sizes | Small (User Height 170 cm, Shoulder 152 cm, Hip to Leg 145 cm), Regular (User Height 187 cm, Shoulder 158 cm, Hip to Leg 148 cm), Large (User Height 200 cm, Shoulder 167 cm, Hip to Leg 160 cm) |
What these specs mean
- Denier (D)
- Fabric thickness. Lower numbers are lighter; higher numbers resist abrasion and punctures better.
About this item
- Weighs only 557 grams for its 3C warmth rating, combining technical down insulation with a full-zip venting system.
- 3D vertical V baffles with 800-850 loft hydrophobic down provide superior warmth and moisture management
- Full zippered ventilation system allows easy airflow and temperature regulation
- Box foot design prevents cold spots and enhances even heat distribution
- Breathable 10 denier vapor vent fabric reduces condensation and increases comfort
- Ethically sourced down ensures animal welfare and traceability
How it scores
Good · likely 4.9 to 8.2 · low confidence
From 89 store ratings.
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By what matters
By source
One source so far.
Out of 10. Each source is weighted by how reliable it is, how much data it has and how recent it is; sponsored videos count half, and the brand’s own videos don’t count. How the score works
Reviews and videos
Sources we checked
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Product description
This is one of the lightest bags for its warmth rating on the market: at just 557 grams, the -3°C version is unbeatable. We’ve used technical know-how and quality materials to keep it warm and practical as well as super light: 3D, vertical V-baffles filled with 800-850 loft Hydrophobic Down; a full zip allows venting while the box foot prevents cold spots; and there’s a draft tube, three-quarter hood and internal chest drawcord. The Nitrous is also versatile. It’s available in three warmth ratings and three sizes. Other features include super light, downproof by construction and breathable 10 denier Vapour Vent fabric and a zip protector on the YKK zip. Specifications: Down: 800-850 Loft hydrophobic down Comfort Rating: 3°C Limit of Comfort: -3°C Extreme: -18°C Weight: Small 557G, Regular 598G, Large 637G User Height: Small 170cm, Regular 187cm, Large 200cm Shoulder circumference: Small 152cm, Regular 158cm, Large 167cm Hip to Lower Leg Circumference: S mall 145/115cm, Regular 148/115cm, Large 160/118cm Stuff Sack size (Uncompressed): All sizes 4L (Compresses to 15 x 18cm) Temp Ratings One Planet sleeping bags are rated using the international standard for sleeping bag p
From the seller’s listing.


