Mountain Equipment Helium 600

From £252.00
£280.00
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A superb down bag at a price that won't break the bank and low in weight and pack size this is a bag that's warm enough for early Spring and late Autumn use at higher altitudes or Northern latitudes. It should give a good night's sleep in temperatures as low as -10°C (for men) and -8°C (for women).

Mountain Equipment Helium 600

Regular Left Zip
£252.00
£280.00
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3 In Stock
Regular Right Zip
£252.00
£280.00
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Women's Left Zip
£252.00
£280.00
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Women's Right Zip
£252.00
£280.00
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Long Left Zip
£270.00
£300.00
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1 In Stock

A superb down bag at a price that won't break the bank and low in weight and pack size this is a bag that's warm enough for early Spring and late Autumn use at higher altitudes or Northern latitudes. It should give a good night's sleep in temperatures as low as -10°C (for men) and -8°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 600 Fill Weight Internal Length Shoulder Width Foot Width Packed Size Weight
Regular 620g 185cm (6' 1") 75cm 50cm 25cm x 23cm x 20cm 1030g
Long -g 200cm (6' 7") 75cm 50cm -g
Women's 554g 170cm (5' 7") 75cm 50cm 23cm x 22cm x 22cm 950g
ME Helium 600
Fill: 700+ USA fill power duck down
Comfort: 
Comfort Limit:
Extreme:
-5ºC 
-11ºC
-31ºC
 
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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