Mountain Equipment Womens Helium 400 Sleeping Bag

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All about this product



The Women's Helium 400 Sleeping Bag from Mountain Equipment has been thoroughly optimised to ensure excellent warmth with minimal weight for a good night sleep.

The slanted box-wall construction throughout the main body of the bag helps to shed any excess weight while also reducing the chance of any cold spots occuring. The mid-level side seams of the bag ensure great comfort whether it is laid on its front or its back, this is also reflected in the fill distribution, while there is a little more on the top than the bottom there is always sufficient enough to ensure comfort.

An integrated neck baffle helps to reduce the amount of heat lost from inside the bag and the Trapezium 4, Sharks Toe foot box helps to maximise warmth and comfort to keep your toes toasty. Each of these features has been carefully considered to provide a lightweight, warm bag that is ideal for cold weather backpacking adventures across the globe.

Technical details

  • Materials:
    • Outer: Recycled Helium 20, 100% polyamide
    • Inner: Recycled Supersoft 30, 100% polyamide
    • Insulation: 700 FP Pure duck down
    • PFC free DWR
  • Storage cube & waterproof roll-top stuff sack supplied
  • Zoned EXL system maximises thermal efficiency
  • 4 Baffle anatomically shaped & off-set foot-box
  • Integrated collar with Lode Lock closure
  • Five baffle anatomically shaped hood
  • Slanted box-wall baffles throughout
  • Full length Gemini zip baffle
  • Mid-level side seams
  • Comfort limit: -3°C
  • Fit: Alpine
  • Pack size: 23 x 19 x 17cm
  • Weight: 845g


Insulation Type

Technical Features

Season rating
3 Season
Min. comfort temperature
10 ° C to 1 ° C
Temperature rating
3°C / -3°C / -19°C


Sleeping bag shape
Mummy Shape
Fill power (cuin)
Sleeping bag features
Draft tube, Foot box, Hood, Zip together

Other features

Mountain Equipment
Ideal For
Backpacking, Camping
Product Code
Reviews (9)

User Reviews (9)



This product is made from materials such as recycled, organic, alternative (fast renewable raw materials), a combination of these and/or does not intentionally contain any chemicals.


This product as a whole or the individual materials within this product have the following certification(s). These are voluntary guidelines used to demonstrate their commitment to good environmental, social, ethical, and food safety practices.
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