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    ME-005894

    Firefly

    Regular price £500.00
    As efficient a bag as it is possible to make with exceptionally high quality down and optimised fit, this ultralight bag will pack a punch in any high mountain environment during the late spring and summer.
    • Ideal for: Backpacking & Trekking, Alpine Climbing
    • Weight: 550g/1 lbs 3.4ozs
    • Thermometer
      Good Night's Sleep Temperature: -3°C/27°F
    Select Colour Me-01318 Ombre Blue
    Size Left Zip - Regular
    • Free Express Delivery on all orders until Monday 4th December.
    • Hassle free returns within 30 days.

    Firefly

    As efficient a bag as it is possible to make. With exceptionally high quality down and optimised fit, this ultralight bag will pack a punch in any high mountain environment during the late spring and summer.

    As efficient a bag as it is possible to make. With exceptionally high quality down and optimised fit, this ultralight bag will pack a punch in any high mountain environment during the late spring and summer.

      Technical details

      Temperature ratings

      Comfort

      4°C/39°F

      Comfort Limit

      -2°C/28°F

      Extreme

      -18°C/0°F

      Features

      • PLASMA 10D fabrics throughout are incredibly light and breathable with FC free DWR
      • 252g of 90-10 European Goose Down with a minimum fill power of 900
      • Alpine Fit 2.0 with revised EXL® system improves comfort and loft whilst maximising thermal efficiency
      • Slanted box-wall baffles throughout
      • Ground level side seams
      • 7 baffle low volume anatomically shaped hood
      • 4 baffle anatomically shaped and offset foot-box
      • Full length Gemini zip baffle and 140cm zip with low profile grown-on front collar
      • Plasma 10D inner throughout with FC free DWR
      • Supplied with waterproof roll-top stuff-sack and storage cube
      • A Good Night's Sleep Guaranteed
        So confident are we that our sleeping bags will keep your warm and comfortable, that in addition to the EN13537/ISO23537 laboratory ratings we quote, every Mountain Equipment sleeping bag comes...

        So confident are we that our sleeping bags will keep your warm and comfortable, that in addition to the EN13537/ISO23537 laboratory ratings we quote, every Mountain Equipment sleeping bag comes with a separate ‘A Good Night’s Sleep Guaranteed’ temperature rating.

      • Down 900
        Our finest goose down and amongst the world’s very finest down. With a minimum down cluster content of 90% and individually tested at the point of filling to ensure a...

        Our finest goose down and amongst the world’s very finest down. With a minimum down cluster content of 90% and individually tested at the point of filling to ensure a minimum fill power of 900.

      • Down Codex
        The DOWN CODEX® is our multi-award-winning certification scheme that considers the environmental, ethical and animal welfare matters relating to our down supply chains. It is grounded in comprehensive and transparent...

        The DOWN CODEX® is our multi-award-winning certification scheme that considers the environmental, ethical and animal welfare matters relating to our down supply chains. It is grounded in comprehensive and transparent auditing that ensures traceability and quality.

      • Fair Wear
        As a member of Fair Wear, Mountain Equipment is committed to implementing the highest standards of working conditions.

        As a member of Fair Wear, Mountain Equipment is committed to implementing the highest standards of working conditions.

      • Plasma
        One of the lightest downproof fabrics on the planet. Perfect for alpinists and backpackers for whom weight is absolutely critical.

        One of the lightest downproof fabrics on the planet. Perfect for alpinists and backpackers for whom weight is absolutely critical.

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      Choosing the right sleeping bag

      A fitful night’s sleep is no preparation for the big day ahead. Sleeping bags can make the difference between a comfortable sleep and suffering through the night.

      Sleeping Bag Guide Temperature ratings explained