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Mountain Equipment Helium 400 REG women's sleeping bag, medieval blue

339 
RRP 369 
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Delivery method on Monday 28.09.2026
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Delivery method on Monday 28.09.2026
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Choose the right sleeping bag

Mountain Equipment's down sleeping bag offer is truly extensive. From ultralight summer sleeping bags to expedition sleeping bags for extreme conditions. Therefore, we have prepared a concise guide to help you navigate and choose the right down sleeping bag.Quality sleep is one of the basic requirements for full regeneration during every outdoor activity. The Mountain Equipment HELIUM 400 WOMEN'S down sleeping bag weighs an incredible 750g and yet you can sleep comfortably in it at -3 °C. It is filled with very high-quality duck down. You get a 10-year warranty on the sleeping bag.
  • 100% recycled HELIUM TM 20 D outer material is lightweight, highly breathable and wind-resistant, and treated with PFC-free waterproof DWR finish.
  • 368 g of 90/10 duck down with a minimum fill power of 700 cuin.
  • Womens Alpine Fit cut, with zonal stretch stitching inside – for maximum thermal efficiency with minimum weight.
  • Slanted chambers – for maximum thermal efficiency with minimum weight.
  • Optimized distribution of down and precise volume for each chamber separately.
  • Anatomically shaped 5-chamber hood.
  • Anatomically shaped and tapered 4-chamber footbox.
  • Full-length side baffle and integrated neck collar with simple Lode Lock™ magnetic closure.
  • Supplied with a waterproof stuff sack and mesh storage sack.

HELIUM 20 – 100% recycled, very lightweight, easily packable

Helium 20 material is 100% recycled, exceptionally lightweight, packable, soft and at the same time very durable. The high weaving density prevents down leakage, is windproof and prevents heat loss. Thanks to the PFC-free waterproof DWR finish, it is also water-resistant. This material is ideal where low weight and packability are the most important factors.
  • Extremely lightweight - 38 g/m 2.
  • Highly breathable.
  • Windproof.
100% recycled inner material SUPERSOFT TM 20 is chosen for its low weight, high breathability, exceptional durability and pleasant feel. It is also a material that does not leak down.
  • Low weight (37 g/m 2 )
  • High breathability
  • Durability

Quality duck down with 700+ fill power

Very high-quality duck down from China contains at least 90% down, its fill power is at least 700 cuin and meets the ethical DOWN CODEX ® standard. The down is gently cleaned with water without chemical treatment. This reduces mites and the environment for their life, which is appreciated by allergy sufferers. The down retains its important fat and loft, is well packable, has high insulation and low weight.
  • 368 g of down.
  • Minimum fill power 700+ cuin.
  • Down ratio 90:10.
  • Meets DOWN CODEX ®.
  • Long lifespan.
  • Color: Medieval Blue
  • Lining: SUPERSOFT™ 20
  • Outer fabric: HELIUM™ 20
  • Membrane: No
  • DWR (Durable Water Repellent): Yes
  • Type of insulating material: down
  • Footbox: 4 chambers|anatomically shaped|Shark Toe
  • Chamber type: slanted chambers
  • Fit: Women's Alpine Fit
  • Internal pocket: No
  • Drawcord collar: Yes
  • Compression sack: Yes
  • Zipper model: YKK®
  • Hood: 5 chambers|anatomically shaped
  • Hood adjustability: Yes
  • Comfort: 0
  • Extreme: -24
  • Comfort limit: -6
  • Good Night Sleep: -3
  • Packed dimensions: 20x19x22
  • Max. user height: 170
  • Internal length: 180
  • Max. internal width: 75
  • Sleeping bag length: 180
  • Storage sack: Yes
  • Gender: Women's
Product details
Sex Women
Colour blue
Filling down
Temperature specification three-season
Sleeping bag shape mummy
Sport hiking, camping
Sleeping bag weight up to 750 g
product ID 184685
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Honesty, responsibility and deep respect for the mountains, the environment and nature. These are the values of the British brand Mountain Equipment, which has been part of countless expeditions and climbs to the highest peaks in the world since 1961. For more than 60 years, it has been producing top quality equipment for the most daring mountaineering and polar expeditions to the most inhospitable places on the planet. It prides itself on premium materials and is a major development partner of the GORE-TEX membrane manufacturer

All the answers to questions about delivery, payment, security, returns, warranty and much else.

Why shop with us?
Find out what makes us special
1 500 000+ orders

We are the largest cycling e-shop in Slovakia, verified by 100,000+ customers.

Unique customer service

We are available via e-mail, online chat, phone or in person at our MTBIKER stores.

We actively support the cycling community in Slovakia

Thanks to your order we can support cycling development.

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Loyalty program

We will reward you for your purchase and also for quality contributions in the MTBIKER forum, e-shop, trips and photo gallery.

MTBIKER centre and showroom

Visit our store with a pump-track and trail access or our showroom in a historical bulding in central Bratislava.

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