-12°C

Lightwave Firelight 650 Down Sleeping Bag

-12°C Comfort Limit (EN13537:2012), 650g of 970+ Fill Power Down (US Method)
Weighs 954g (Regular bag)
Code: SS16127
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Lightwave's Firelight sleeping bags offer amazing warmth for weight, there's no mystery though, they use the very best quality ethically sourced down in a box wall constructed bag.

Lightwave says:

The Firelight 650 is a high quality, lightweight down sleeping bag that is ideal for use in temperatures down to -12°C. Manufactured wholly in Poland, the Firelight 650 is filled with the famed Polish white Goose down that is 100% ethically recovered. The down has a fill-power of 900 cubic inches as measured by the EU norm (and is equivalent to 970 cubic inches using the US standard).

The Firelight 650 has a full length zip that lies on the top of the bag. The zip is protected by a double baffle. There is a full neck collar that can be adjusted to close completely around the neck to provide a complete seal.

The Firelight 650 comes in three sizes and is supplied with a compact stuff sack and a large storage bag.

Both the quality of construction and the quality of down in Lightwave's Firelight range of sleeping bags ensure that these bags achieve superior ratings when tested to the European EN 13537 standard.

Aside from this obvious quality we like some of the design features, for example the full length zip is on the top of the bag rather than the side - this seems easier to use somehow - when testing a Firelight 650 I could find the zipper much more quickly, and because it starts at the top of the bag I was less likely to turn over leaving it underneath me.

Another curious point was the lack of zip snag, every bag I have ever used snagged at some point, but the Firelight never did. I could quite work this out - but I note the zip is a smaller gauge than usual - which could be it.

Buy these bags and you are buying quality.

- Reviewed by Ultralight Outdoor Gear

Read reviews here:

Help and advice:Choosing a sleeping bag advice
 EN 13537 rating for sleeping bags explained
 Sleeping bag shape and sizes advice
 Sleeping Bag features Page 1
 Sleepin bag features page 2
 All about down filling in sleeping bags

Construction

The construction describes how the down is held in place (otherwise all the down would fall to the bottom) and what features are incorporated to maximise heat retention or, conversely, regulate your temperature. The Firelight 550 has sufficient down fill to warrant more sophisticated features such as a full-length side baffle, double zip baffles and an insulated neck baffle.

  • Baffles: Slant box wall throughout
  • Hood: Adjustable cowl
  • Neck: Fully adjustable baffle
  • Zip: Full length #5 YKK
  • Zip baffle: Double

Fabrics

Lightweight fabrics allow the down to loft and reduce the weight of the bag. Although there are lighter-weight versions of the Pertex Quantum fabric we are using, they offer a negligible saving in overall weight and, having a lower tear strength, are easier to damage.

  • Shell: 29 g/m² 15 denier nylon (Pertex Quantum)
  • Lining: 29 g/m² 15 denier nylon (Pertex Quantum)

UOG Weights

  • Short bag weighs: 894g
  • Regular bag weighs: 954g
  • Long bag weighs: 1052g
  • The total weight does not include the stuff sack or storage bag

Lightwave Specs

  • Left hand zip only
  • Packed size: 35cm x 22cm, 13.3L
  • EN13537 Comfort rating: -5°C;
  • EN13537 Lower Limit rating: -12°C
  • Fill weight: 650 g (size M)
  • Fill power: 900 EU (970 US) white Polish Goose down
 User HeightFill WeightTotal WeightZip LengthInternal WidthInternal Length
Short

<170cm

< 5'7"

620g894g135cm80cm175cm
Regular

170-183cm

5'7" - 6'

650g954g150cm80cm190cm
Long

183-200cm

6' - 6'6"

710g1052g175cm80cm215cm

EN13537:

Although there are four different measurements, the two most useful (and in our experience reasonably accurate) ones are:

  • EN13537 Comfort Rating: Temperature at which a standard adult female can have a comfortable night’s sleep.
  • EN13537 Comfort Rating: The lowest temperature at which a standard adult male is deemed able to have a comfortable night’s sleep.
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