Elevate your overnight mountain experience with Mountain Equipment’s Helium 400, the ideal down sleeping bag. Featuring an integrated draught collar and adjustable hood, this mummy sleeping bag ensures optimal comfort during your mountain sojourn. The ergonomic Alpine Fit 2.0 construction provides a comfortable cut and ample space for a restful night.

Embracing sustainability, both the Supersoft inner and the outer, crafted from breathable Helium fabric, are made from recycled materials. As you sleep, moisture is efficiently wicked away from your body, and the PFC-free finish on the outer layer acts as a protective barrier against penetrating moisture. Immerse yourself in the perfect blend of comfort, functionality, and eco-conscious design with the Helium 400 for your next mountain adventure.

Technical details

Ideal use:

Backpacking, Trekking

Materials:

Outer: Recycled Helium 20D, 100% polymaide

Inner: Recycled Supersoft 20D, 100% polyamide

Insulation: 700FP Pure duck down

PFC-Free DWR

Key features:

Storage cube & waterproof roll-top stuff sack supplied

Zoned EXL system to maximise thermal efficiency

4 Baffle anatomically shaped & off-hset foot-box

Integrated neck collar with Lode Lock closure

Slanted box-wall baffles throughout

5 Baffle anatomically shaped hood

Full length Gemini zip baffle

Mid-level side seams

Breathable

Insulated

Tech specs:

Comfort: 0C

Comfort limit: -6C

Extreme: -24C

Length: Regular / 192cm

Pack size: 24 x 21 x 20cm

Weight: 820g

Size and fit:

Fit: Alpine 2.0

Material

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