RAB's Neutrino 800 sleeping bag benefits from RAB's technical improvements and hydrophobic down, and has a full range of features commensurate with a bag rated to minus 20C.
Neutrino Series; Minimalist, lightweight pursuits.
The Neutrino series of bags are a range of lightweight down filled sleeping bags. We use 800 fill power European goose down and we wrap it in very lightweight Pertex Quantum inner and outer fabric. this allows maximum loft for the down for minimum weight.
Like the Alpine bags the Neutrino bags have a mummy taper shape that maximises warmth for minimum weight. The bags are hand-filled in Derbyshire by our experienced fillers - some of whom have been with Rab for 20 years - what they don't know about down isn't worth knowing!
The Neutrino Bags are aimed at lightweight end users - where every gram counts. the Neutrino bags are ideal for fast&light mountaineering, cycle touring, mountain marathons and ultralight backpacking
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RAB have been making sleeping bags for over thirty years so they know a thing or two about how to put one together. Working with Leeds University they have been working hard to further improve their warmth to weight ratios by perfecting the down volume/chamber size ratio to maximise loft and minimise fabric use, resulting in a lighter bag with no compromise on performance. There are also slight changes to the cut of the bags to support the chamber work that they have been doing.
All their down bags are now filled with Hydrophobic down which improves their performance in adverse damp conditions, this is especially significant if you want to use a bag night after night without the opportunity to air it off - under these conditions the down can be compromised by body moisture passing through it. Furthermore the Hydrophobic treatment neither adds weight nor impairs loft.
All the down is certified as responsibly sourced by the European Down and Feather Association.
All this adds up to a pretty impressive product. RAB's Neutrino 800 sleeping bag benefits from RAB's technical improvements and hydrophobic down, and has a full range of features commensurate with a bag rated to minus 20C.
- Reviewed by Ultralight Outdoor Gear
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What is the 'RAB Sleep Limit'? - The recognised method of testing sleeping bags is by using the standard EN13537 temperature ratings, which are carried out by independent testing houses. The test is performed with the sleeping bag resting on an insulating mat to simulate the bag in use. The same sleeping mat is used for all testing of all sleeping bags.
RAB's view is that the sleeping mat used is inappropriate for bags designed for very low temperatures because a user would be sleeping on a highly insulative winter orientated sleeping mat, not the standard one used in the test. The test results would therefore indicate a lower performance for the sleeping bag than a user would experience in a typical situation.
RAB have therefore defined their own 'RAB Sleep Limit' as the equivalent 'Comfort limit' but based on their athletes experience and extrapolating results from other bags.
EN13537:2012 - Look for the 2012 label for the most accurate rating; In 2012 the EN system of testing sleeping bags was re-vamped - the new testing procedures are more rigorous, producing more consistent results than previous tests. 2012 results tend to rate sleeping bags as poorer performing by a few degrees when compared to previous test results, even though the sleeping bag may be identical, or even better.
This means that comparison between an EN13537:2012 rated bag and an EN13537:2002 rated bag are particularly difficult - our advice is to use the new EN13537:2012 rating to compare with other bags who have also been rated in this way.