Tests & reviews

Sea to Summit - Alpine -29°C - Down sleeping bag tested

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This is what customers from around the world say:

Rebecca
10.03.2025
Super warm and packable

Bought this bag for an expedition. What I really like about it is the zip on both sides, this means that at lower elevations you can keep cool, but as you head up to cold conditions in high altitude you get the full benefit of the high fill power. Plenty of space to shove your gear in when the temperature is sub zero, but still minimises dead spaces to ensure the warmth remains in the bag. I have found this a really comfortable bag to sleep in and it’s pretty lightweight and packable for its rating.

  • Advantages
    Full length zip
    Roomy
    Easily compressed
    Lightweight
    Adjustable hood
Mathias
12.11.2024

  • Advantages
    Easily compressed
    Adjustable hood
    Lightweight
    Roomy
    Draft collar
    Water repellent