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Mountain Equipment Helium 400 Long sleeping bag, medieval blue

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Choose the right sleeping bag

Mountain Equipment's range of down sleeping bags is really wide. From ultralight summer sleeping bags to expedition sleeping bags for extreme conditions. We have therefore developed a brief guide that will help you find your way and choose the right down sleeping bag.

Quality sleep is one of the basic requirements for full regeneration during any outdoor activity. The Mountain Equipment HELIUM 400 WOMEN'S LONG down sleeping bag weighs an incredible 780 g, while you can sleep comfortably in it at -3 °C. It is filled with high-quality duck feathers. 

  • The 100% recycled surface material HELIUM TM 20 D is light, highly breathable and wind-resistant and treated with PFC-free water-resistant DWR treatment.
  • 388 g of duck down 90/10 with a minimum fill of 700 cuin.
  • Womens Alpine Fit cut, zonal inside with stretch seams - for maximum thermal efficiency with minimum weight.
  • Slanted chambers – for maximum thermal efficiency with minimal weight.
  • Optimized feather distribution and precise volume for each chamber separately.
  • Anatomically shaped hood with 5 chambers.
  • Anatomically shaped and beveled foot area from 4 chambers.
  • Full-length zip side gusset and integrated neck collar with simple Lode Lock™ magnetic closure.
  • Extended for women 170 cm tall and over.
  • Supplied with waterproof case and storage net.

HELIUM 20 – 100% recycled, very light, easy to pack

Helium 20 material is 100% recycled, exceptionally light, packable, soft and at the same time very durable. The high density of the weaving does not allow feathers to pass through, it is resistant to wind and prevents heat loss. Thanks to the water-repellent DWR treatment without PFC, it is additionally resistant to water. This material is ideal where light weight and packability are the most important factors.

  • Extremely light - 38 g/m 2.
  • Highly breathable.
  • Wind resistant.

The 100% recycled SUPERSOFT TM 20 inner material is chosen for its low weight, high breathability, exceptional durability and pleasant feeling to the touch. It is also a feather-proof material.

Color: Medieval Blue
Lining: SUPERSOFT™ 20
Outer fabrics: HELIUM™ 20
Membrane: No
DWR (Durable Water Repellent): Yes
Type of insulating material: feathers
Foot area: 4 chambers|anatomically shaped|Shark Toe
Chamber type: beveled chambers
Fit: Women's Alpine Fit
Inner pocket: No
Drawstring collar: Yes
Compression pack: Yes
Zipper model: YKK®
Hood: 5 chambers|anatomically shaped
Hood adjustability: Yes
Comfort: 0
Extreme: -24
Comfort limit: -6
Good Night Sleep: -3
Dimensions when packed: 20x19x22
Maximum character height: 185
Internal length: 195
Maximum internal width: 75
Length of sleeping bag: 195
Storage case: Yes
Gender: Female

Product details
Sex Unisex
Colour blue
Filling down
Temperature specification three-season
Sleeping bag shape mummy
Sport hiking, camping
Sleeping bag weight 751 - 1000 g
product ID 184692
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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.

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