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Rab Neutrino 400

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    Purchase Rab Neutrino 400

    Rab Neutrino 400

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    Full Description

    The Rab Neutrino line of sleeping bags are constructed from lightweight and high quality recycled materials, using 800 Fill Power European Hydrophobic Goose Down and 20 denier Pertex Quantum fabric recycled nylon ripstop outer. With a high warmth to weight ratio, making the Neutrino 400 a very versatile bags, ideal for lightweight pursuits from backpacking to cycle touring, mountain marathons or fast-and-light mountaineering. The Neutrino 400 is a great mid weight down bag that strikes a good balance between weight and warmth.

    Hydrophobic down is used to provide better performance in damp conditions. This is achieved by washing in a Nikwax coating in the early stages of production. This down is NOT waterproof, but will retain its loft for longer if it gets damp, and will dry faster. The Pertex Quantum fabric has a degree of water resistance, but for something more durable and water resistant check out the Neutrino Pro line of bags.

    The Neutrino range now features an antisnag zipper with glow in the dark zipper pull making those emergency night time escapes much easier and less risky to the lining of your bag. A small internal stash pocket is ideal for keeping small essentials to hand, keeping batteries warm or securing valuables in dodgier regions!

    Rab Neutrino 400 Features

    • 20D Pertex Quantum recycled nylon ripstop
    • 800 FP European Goose Down
    • Rab fluorocarbon free Hydrophobic Down developed in conjunction with Nikwax
    • Mummy taper shape
    • Half length YKK 5 coil main zip
    • Internal stash pocket
    • Anti snag zipper with glow in the dark zipper pull
    • Internal collar and hood drawcord
    • Proportionally assigned differential cut
    • Trapezoidal baffle chamber design
    • Angled foot box
    • Dry bag compression stuff sack
    • Zipped Cotton storage sack
    • Hand-filled in Derbyshire UK

    Size Guide

    Size EN
    Max User
    Fill Fill
    Regular -1°C -7°C -25°C 80cm 40cm 185cm 800 Goose Down 400g 775g 23 x 35cm
    Wide -1°C -7°C -25°C 91cm 40cm 185cm 800 Goose Down 435g 835g 23 x 35cm
    Long -1°C -7°C -25°C 81cm 42cm 200cm 800 Goose Down 435g 835g 23 x 35cm

    Please note Extreme temperatures are at the point of danger to health.


    5/5 Stars out of 1 Reviewx
    Rab Neutrino 400 Review
    Immediately you notice the bag is light, but well made. The bag has a soft and comfortable feel that makes you wish you didn't have to use a sleeping bag liner (. . but you should of course!). It seems thin at first but is surprisingly warm once you are in, relying on your body heat of course to get the temperature up inside! The bag packs well in the tight fitting carry bag and measures up to what is advertised (~27x18cm in size when fully compacted). The storage sack is quite useful to keep your bag stored in the long term. I am ~5'8, 71kg, and fit inside very easily with quite a bit of room from the waist up to move around. I would strongly recommend this sleeping bag. It's worth the high price for something that will easily last 10-12+ years with occasional use and being looked after well.