Firelight 650


The Firelight 650 is a recent addition to the range. We find the 550 an excellent all-round bag as long as you didn’t venture anywhere too cold, whereas the 750 is just too warm for any use outside of winter or high places. The 650 slots nicely in-between, is comfortably warm to -10 Celsius, is very compact being less than three and a half litres when packed, and weighs exactly a kilo including its stuff sack.

Its performance comes from the incredibly high-lofting, 900 fill-power, Polish goose down and the box-wall baffle construction throughout. The Firelight is made from a high-quality, 15 denier, Japanese-produced fabric whilst the foot area is protected by a Pertex Endurance water-resistant fabric.

The Firelight 650 is a warm bag – but not too warm for less extreme temperatures. This is a good bag for someone who can only afford to invest in one high quality bag and wants to find the most versatile range of use.

It is available in 3 sizes and has a full-length zip.


Only size S in stock currently.


Mummy design with full-length zip
Adjustable hood closes around head
Water-resistant Pertex Endurance covered foot area
Slant box-wall baffles throughout
Double zip baffle
Full length side baffle (so down can't shift from top to bottom or vice-versa)
Supplied with stuff sack and storage bag
Packed size of 42 cm x 25 cm

Technical Specifications

Weight: 980 g (Medium)
Colour: Sunset Red/Berry Purple
Fill: 650 g of 900 fillpower (EU) Polish goose down (Medium)
Shell: 15 d nylon micro ripstop, 30 g/m², (10 d Pertex Endurance 29 g/m², in foot area)
Lining: 15 d nylon micro ripstop 30 g/m²
Baffles: Slant box wall throughout
Double zip baffle
Side seam baffle
Zip: Full length #3 YKK zip
Sizes: Short (left zip)
Medium (left zip)
Long (left zip)
Packed size: 35 cm x 22 cm Ø (13.3 litres)
Made In: Poland


Temperature Ratings

EN13537: -5˚C Comfort
-12˚C Lower limit
-27˚C Extreme


The comfort rating represents the lowest temperature at which a standard adult FEMALE can have a comfortable night’s sleep.

The lower limit represents the lowest temperature at which a standard adult MALE is deemed able to have a comfortable night’s sleep.

The extreme limit is a nonsense and best ignored. We really don't see any usefulness in this measure.

We like the EN13537 ratings at Lightwave. Going by our own extensive experience, we feel they accurately reflect the temperature limitations of each sleeping bag for a comfortable night’s sleep. Individual tolerances may allow some people to go beyond these figures, but we believe this is at the discretion of the user and is not something to be claimed by us.

Care & Attention

Down is a very resilient insulating material and, with basic care, any down sleeping bag should last you a very long time (if not your entire active climbing life). There are two simple rules to ensure longevity:
1. Always store your sleeping bag uncompressed in a dry, airy place.
2. Always use a sleeping bag liner. This will prevent the bulk of body oils and perspiration from getting into the down itself and reduce the need for washing the bag.

Although it is possible to machine wash these bags, we highly recommend you hand-wash your down sleeping bag or, alternatively, use a professional service. You can download washing instructions here.