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Mountain Equipment Helium 400 (Summer 19)
    Mountain Equipment Helium 400 (Summer 19)
    Purchase Mountain Equipment Helium 400 (Summer 19)
    • Mountain Equipment Helium 400 (Summer 19)

    • £150.00 (RRP:£250.00, Save 40%)

    • Option:

    • Delivery: Free UK Delivery on all orders over £30
      Order by 2pm for same day dispatch (M-F).
      Full UK and International Delivery details.
    • Returns: 60 Day returns
      Return unwanted goods within 60 day
      For more info see our full Returns Policy
    • Customer Rewards:
      You'll earn a Facewest Credit of £7.50 with this item. Details here.


    Mountain Equipment's Helium Range is lighter than their Classic but lower priced than their Extreme range. Helium bags offer outstanding all round performance and are now lighter and warmer for their weight than ever before. The Helium 400 is ideally suited for Spring/Summer backpacking and cycle touring and will cope if the temperature becomes cooler.

    The Helium 400 is constructed using slanted Box-Wall baffles throughout the entire main body, this increases the bags thermal efficiency and improves down migration control.The outer fabric is Helium 20D which is very compressible, durable and comfortable.

    The Helium 400 features a single handed Lode Lock closure with quick release, this essentially is two internal captivated magnets which automatically pull together and then lock into place preventing the bag from accidentally opening during your nights sleep. The Gemini zip baffle system replaces bulky twin draft tubes used traditionally on cold weather bags by the baffle being incorporated in the sidewalls. This new construction is light, low bulk, efficient and protective. In addition, the bag also features an integrated and fully adjustable down filled neck collar. All these features contribute to retaining essential warmth whilst you are sleep.

    Mountain Equipment Helium 400 Features

    • 90-10 700+ FP Pure Duck Down insulation
    • 20D Helium very light and breathable outer fabric
    • 30D Supersoft duable, breathable and soft to hand lining
    • Alpine fit maximises thermal efficiency
    • Slanted Box-Wall baffles throughout
    • Mid-level side seams maximises heat retention
    • 5 baffle anatomically shaped low weight hood with excellent insulation and dual tether draw cords
    • 4 baffle anatomically shaped and offset foot-box restricts down migration keeping bulk and weight to a minimum
    • Full length Gemini™ YKK™ #5 Coil 2-way zip and integrated neck collar the Lode Lock closure
    • Waterproof roll-top stuff-sack and storage cube
    • Good Nights Sleep Guaranteed -5°C

    Size EN
    Max User
    Fill Fill
    Reg 3°C -3°C -19°C 190cm 75cm 50cm 185cm 90-10 700+ Duck Down 385g 855g 24 x 20 x 17cm
    XL 3°C -3°C -19°C 205cm 75cm 50cm 200cm 90-10 700+ Duck Down 403g 880g 25 x 21 x 17cm

    Please note Extreme temperatures are at the point of danger to health.

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