The Rab Neutrino Endurance takes inspiration from both adventure racing and mountaineering, which look for performance at minimum weight. The top half of the bag has regular trapezoidal baffles, which loft (fluff up) well; but the back has varying amounts of insulation, from very little under your torso to well-insulated around the foot. The idea is to save weight where your body crushes the down, rendering it ineffective – which is fine if you lie on your back all night, but often I flip onto my side, at which point I can feel the cold. There’s a half-length two-way internally baffled zip with an anti-snag strip and Velcro security tab. The hood is simple but well-shaped, cinches in well and has a small zipped pocket to one side of your chin that sits outside of the adjustable shoulder baffle. The Neutrino uses highly water-resistant outer fabric, which could give it an advantage in many cases – such as nights in small condensation-prone tents. A comfortable bag with room to move, the Rab Neutrino Endurance has hanging loops and comes with a dry bag compression stuffsack and storage bag.
Weight (bag only) 704g
Size (length x shoulder width x foot width) 220x42x76cm
Packed size 15x28cm
Outer fabric Pertex Endurance
Inner fabric Pertex Quantum and Pertex Endurance
Insulation 800 European goose down and Primaloft draught tube
Construction trapezoidal baffles
Comfort temperature rating +5 deg C
Lower comfort limit 0 deg C
Extreme temperature rating -16 deg C
The Rab Neutrino Endurance’s water-resistant shell could be a distinct advantage in our damp climate, but the fabric edges the weight up to 704g for a 0 deg C bag.
Review by Peter Macfarlane
First published in Trail magazine June 2012