-8°C

Mountain Equipment Fireflash Down Sleeping Bag

-8°C Comfort Limit , 650g of 800+ Fill Power Down
Weighs 976g (Regular bag)
Code: SS18133
  • Now £449.99
  • (FREE UK & EU Delivery)
+ In Stock Now | Usually dispatched within 24 hours
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The lightest, most efficient range of bags ME has ever developed. If you want reliable warmth for minimum weight, look no further.

Mountain Equipment says:

The warmest of our lightest bags. Perfect for going fast and light in the mountains.

Mountain Equipment use their own 'Good Nights Sleep Guaranteed' rating which they believe is a more accurate number for some sleeping bags and is based not just on the EN test results but on lab testing, their own use, thermal imaging and cold chamber work, along with a lot of data analysis. The figure above is what they consider to be the lowest temperature that you will be comfortable at when using this bag.

Mountain Equipment's Extreme Light series, which includes the Firefly, Firelite & Fireflash sleeping bags, are the lightest bags Mountain Equipment have ever developed. They haven't gone in the minimalist direction and stripped the bags of any features, you get box-wall baffle construction, anatomical hood and foot-box, a neck and zip baffle and more.

With the Extreme Light series bags you get the quality and innovation of ME bags, whilst using some of the lightest materials out there.

ME are so into their sleeping bag efficiency they even have a 'Doctor of Down' in their team, the only person in the world to have a Phd in down use in outdoor garments and equipment. With the knowledge they have in their team they have come to the conclusion that the traditional EN tests don't accurately represent the temperature ratings of their bags. So they've come up with their 'Good Night's Sleep Guarantee', which is their rating devised through testing in the field, in university cold rooms and labs as to at what temperature the bag should keep you comfortable. You will find this rating listed in the Specifications. For comparison purposes we also quote the EN test ratings.

- Reviewed by Ultralight Outdoor Gear

Help and advice:Choosing a sleeping bag adviceEN 13537 rating for sleeping bags explainedAll about down filling in sleeping bags
Sleeping bag shape and sizes adviceSleeping Bag features Page 1Sleepin bag features page 2
  • Plasma 10D outer shell is incredibly light and exceptionally breathable
  • 650g of 90-10 Russian Goose Down with a minimum fill power of 800
  • Alpine fit with EXL system improves loft and maximises 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
  • Plasma 10D inner throughout
  • Supplied with waterproof roll-top stuff-sack and storage cube
  • Regular weighs: 976g (excludes stuff sack)
  • Comfort: -1°C/30°F
  • Comfort Limit: -8°C/18°F
  • Good Nights Sleep Guaranteed*: -14°C/7°F
  • Extreme: -26°C/-15°F
  • Fill Weight: 650g / 23oz
  • Pack Size: 25cm x 21cm x 20cm
  • Length Inside: 190cm/75in
  • Max Width Inside: 75cm/30in
  • Inside Foot Width: 50cm/20in
  • Max User Height 185cm/73in

*Mountain Equipment use their own 'Good Nights Sleep Guaranteed' rating which they believe is a more accurate number for some sleeping bags and is based not just on the EN test results but on lab testing, their own use, thermal imaging and cold chamber work, along with a lot of data analysis.

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