Lightwave Firelight 350 £449

■ Lowest comfort ●imit -2°C ■ Size (length x shoulder x foot width) 200x75x55cm (plus short and long) ■ Packed size 18x26cm

■ Weight 654g (inc 15g stuffsack)

IT'S GOOD

This bag is extremely lightweight but also has a lower temperature rating than some bags. The foot area is very wide too, and there’s a full-length side zip, so it is not skimping on features. The low weight comes from the use of 900 fill power down combined with very thin Pertex Quantum 15 denier nylon. The weight saved by the materials means that plenty of great features can be added, so that full-length side zip has a very good internal baffle, and the shoulder baffle is also very well filled. In addition the bag comes in three sizes. If low weight and full features are your priority, then this sleeping bag is hard to beat.

HOWEVER

The obvious drawback here is the price tag, but if you pay less then you’ll need to compromise on the weight or other benefits. The stuffsack doesn’t include a means of compressing the bag, but if paired with a compression bag it would go down to 18x16cm. The side zip is great but seems more likely to snag than some others, so a little more care is needed. The hood fits well but some others have a little more comfort around the drawcord, and the shoulder baffle gets no drawcord at all. Some bags get stress zones and extra water-resistant designs, so there are drawbacks here if low weight is not your number one priority.

VERDICT

When low weight and practical features are needed this bag is hard to beat for those with the cash.