Mountain Equipment Helium 800

From £360.00
£400.00
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A superb down bag at a price that won't break the bank and ideal for backpacking and camping in cold but dry conditions. Whether staying in unheated tea-houses in the Himalaya or winter rooms in the Alps, this warm but lightweight bag is an ideal choice and is reckoned to give a good night's sleep in temperatures as low as -16°C (for men) and -13°C (for women).

Mountain Equipment Helium 800

Regular Left Zip
£360.00
£400.00
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1 In Stock
Regular Right Zip
£360.00
£400.00
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1 In Stock
Long Left Zip
£378.00
£420.00
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1 In Stock
Women's Left Zip
£360.00
£400.00
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2 In Stock
Women's Right Zip
£360.00
£400.00
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Women's Long Left Zip
£378.00
£420.00
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A superb down bag at a price that won't break the bank and ideal for backpacking and camping in cold but dry conditions. Whether staying in unheated tea-houses in the Himalaya or winter rooms in the Alps, this warm but lightweight bag is an ideal choice and is reckoned to give a good night's sleep in temperatures as low as -16°C (for men) and -13°C (for women).

  • 100% recycled Helium 20D outer shell is very light and highly breathable with PFC free DWR.
  • Fill is 90-10 Pure Duck Down with a minimum USA fill power of 700.
  • Alpine Fit 2.0 improves comfort and maximises thermal efficiency (Zoned EXL system in the Women's).
  • Slanted box-wall baffles throughout.
  • Mid-level side seams.
  • Five baffle anatomically shaped hood.
  • Four baffle anatomically shaped and offset foot-box.
  • Full length Gemini zip baffle with 140cm zip and integrated neck collar with Lode Lock closure.
  • 100% recycled Supersoft 20D lining fabric with PFC free DWR.
  • Supplied with waterproof roll-top stuff-sack and storage cube.

100% Polyamide outer and inner, Down fill.

ME Helium 800 Fill Weight Internal Length Shoulder Width Foot Width Packed Size Weight
Regular 795g 185cm (6' 1") 75cm 50cm 31cm x 24cm x 24cm 1230g
Long -g 200cm (6' 7") 75cm 50cm 30cm x 24cm x 23cm 1290g
Women's 734g 170cm (5' 7") 75cm 50cm 30cm x 24cm x 23cm 1140g
Women's Long -g 185cm (6' 1") 75cm 50cm 30cm x 24cm x 23cm 1190g
ME Helium 800
Fill: 700+ USA fill power duck down
Comfort: 
Comfort Limit:
Extreme:
-8ºC 
-15ºC
-36ºC
 
EN Sleeping Bag Temperature Ratings
EN13537 is the European standard for sleeping bags and requires a thermal manikin test which produces four temperature results — upper limit, comfort, lower limit and extreme. There is no legal obligation to use this standard though most reputable brands do, even non-European ones. There is an exemption for military sleeping bags and sleeping bags for extreme temperatures, ie a comfort range of below -25°C. 
Upper Limit: the temperature at which a standard man can sleep without excessive perspiration. It is established with the hood and zips open and with arms outside the bag.
Comfort: the temperature at which a standard woman can expect to sleep comfortably in a relaxed position.
Lower Limit: the temperature at which a standard man can sleep for eight hours in a curled position without waking.
Extreme: the minimum temperature at which a standard woman can remain for six hours without risk of death from hypothermia (though frostbite is still possible).
For the purpose of these measurements, a "standard man" is assumed to be 25 years old, with a height of 1.73m (ie 5' 7", not very tall) and a weight of 73kg; a "standard woman" is assumed to be 25 years old, with a height of 1.60m (ie 5' 2.5") and a weight of 60kg.

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