Thermal versatility for most conditions
The Black Snow 1150g 3-season sleeping bag is the sensible choice for those who refuse to invest in an entire closet full of gear. By setting its comfort temperature at the 0°C mark, it offers all-risk coverage for high-altitude summer bivouacs, while also handling the uncertain nights of spring and autumn without a flinch. It is the all-purpose tool for the regular hiker.
Balance between insulation/compressibility and an enlarged footbox
The integration of 700 grams of 800-fill goose down ensures a generous loft, capable of trapping enough warm air to stabilize your body temperature in cool conditions. Its anatomical footbox keeps your feet warm without compressing the down. The 20D ripstop nylon shell acts as a reliable water-repellent barrier against dew. It is a versatile and reassuring sleeping bag that won't let you down in the event of an unexpected drop in temperature.
Anatomical footbox: foot comfort without compressing the down
The anatomical footbox follows the natural shape of the foot without compressing the insulation in that area, a design detail that distinguishes a bivouac sleeping bag intended for repeated use from an entry-level, straight-cut model.
20D ripstop fabric: the technical foundation for a versatile bag
The 20D 400T ripstop fabric combines lightness and tear resistance, a combination that justifies using this trekking sleeping bag for both day hikes and multi-day backpacking trips.
If you wish to lighten your sleep system to 509 g for the same 0°C range by removing the back section, the Aegismax Wind Hard Twilight quilt is the format to consider.
Why pay more for the same performance?
The Blacksnow was compared with the Decathlon Forclaz MT900. The finding is simple: you get equivalent technical features and warmth without paying the brand premium. Keep your budget for your next expedition.
Data checked against the brands' official product pages — subject to change.
Doubt about which bag is right for you?
The field guide helps you choose based on skill level, temperature, needs, and weight. Support answers specific questions.
Find my bag Contact supportFrequently Asked Questions
The Blacksnow has a comfort temperature of 0°C and a lower limit temperature of -5°C. These values apply under standard conditions: sleeper in thermal base layers, on an insulated sleeping mat. It is designed for hiking, bivouacking use (3 seasons).
The Blacksnow is filled with 800 cuin. The Blacksnow weighs 1150 g, which places it in the lightweight category.
A 3-season sleeping bag is designed for spring, summer and autumn. Its comfort temperature sits between 0°C and +5°C, which covers most wild camps in France up to 2,500 m outside winter conditions. In winter or above 2,500 m, a dedicated cold-weather bag is needed.
A 3-season bag is suited to night-time temperatures between roughly 0°C and +15°C. Below 0°C, thermal comfort is no longer assured without extra equipment (liner, additional sleepwear). Above +15°C, most sleepers will find the bag too warm: venting through the foot zip helps regulate.
For the vast majority of walkers and trekkers in France (GR20, GR5, Tour du Mont Blanc from June to September), a 3-season bag with a 0°C comfort rating is sufficient. A 4-season bag is only needed above 3,000 m outside summer, in winter conditions, or for exposed high-altitude wild camps in autumn.