Neutrino 800 Down Sleeping Bag (-8°F)
Eliminating excess bulk with a highly tapered design and offering exceptional warmth for its weight, this bag is built for fast and light, winter mountain missions. Filled with 800FP goose down and covered with a recycled, wind resistant Pertex® Quantum outer.
Performance
Activities
We recommend using this for:
- Mountaineering
For the alpinist looking for a lightweight, low bulk bag suitable for sub zero temperatures, the Neutrino 800 offers exceptional packability and warmth for its weight. Designed with a narrow mummy fit, for reduced bulk and pack size, and constructed with lightweight, high performance materials. It’s perfect for four season mountain missions.
The Neutrino 800 is filled with 800g of 800FP, goose down, stabilised in chevron shaped baffles, cleverly designed to reduce the amount of fabric needed compared to traditional horizontal baffles. The trapezoid boxwall baffle construction allows the down to fully loft, eliminates cold spots, and maximises warmth. Additional baffles along the length of the zip and around the neck decrease heat loss, and with an adjustable drawcord around the hood you can cinch the bag around your face.
Now built with a recycled nylon lining and recycled Pertex® Quantum outer, it’s wind resistant and a little lighter on the planet too. The down is also finished with a Nikwax, fluorocarbon-free hydrophobic treatment for coping with condensation. It has a ¾ length zip with anti-snag zip guards, a zipped internal stash pocket and comes with a waterproof roll-top compression sack for easy stashing.
Hand-filled in the UK, all our down bags benefit from never having had their down compressed before use, maintaining the down’s loft and warmth.
Get stuck into the detail
Want to learn more about the details that set this gear apart? Hear about the tech, fabrics, and features from the team behind the design.
Play Video- Weight:(Reg) 1208g/42.6oz, (XL) 1283g/45.3oz
- Rab sleep limit:-8°F / -22°C
- Packed size:17.7in x 11in (45cm x 28cm)
- Product Code:QSM-94
- 20D Pertex® Quantum recycled nylon ripstop (38gsm) with fluorocarbon-free DWR
- Lining: 20D Recycled Nylon (38gsm)
- 800FP European Goose Down with Nikwax Fluorocarbon-Free Hydrophobic Finish (800g / 28.2oz)
- Weight saving chevron baffle design, reduces down migration and optimises core warmth.
- Trapezoidal boxwall construction with differential cut, to maximise loft and warmth
- Close fitting adjustable neck baffle design for decreased heat loss
- YKK 3/4 length main zip with synthetic filled baffle to trap warmth
- YKK zipped internal stash pocket
- Angled foot box for relaxed sleeping posture
- YKK Anti-snag zip insert and anti snag internal zip guard
- Hand-filled in Derbyshire UK
- Zipped storage sack with water-resistant base for home storage
- Waterproof roll-top compression sack included
- Main: 100% recycled polyamide. Lining: 100% recycled polyamide
- Tapered Mummy Shape
Sleeping Bag Size Guide
| Tapered Mummy | Regular | Long |
|---|---|---|
| Sleeping bag length | 215cm / 84.6 in | 230cm / 90.6 in |
| Max user height | 185cm / 72.8 in | 200cm / 78.7 in |
| Internal shoulder girth | 160cm / 63.0 in | 162cm / 63.8 in |
| Internal hip girth | 134cm / 52.8 in | 136cm / 53.5 in |
| Internal foot girth | 102cm / 40.2 in | 104cm / 40.9 in |
| Pack size | 17.7in x 11in | 17.7in x 11in |
Material facts
Sustainability. It’s complicated. We’re helping you to make informed choices by giving you the raw data. Clear. Concise. Honest. We pledge to be transparent, showing you how our products are made, from which materials and where. Learn More
Material Facts
Neutrino 800 Down Sleeping Bag (-8°F)
| Recycled | PFAS i
|
|
|---|---|---|
|
Total recycled content* i
|
30% | No |
|
Fabric i
|
100% | No |
| Outer | 100% | No |
| Liner | 100% | No |
| Hydrophobic Down | 0% | No |
|
Zips i
|
39% | No |
|
Trims i
|
8% | No |
| Renewable Energy | ||
| Product Manufacturing | 64% | |
| Manufactured in United Kingdom | ||
| *Calculations based upon the weight of a regular length sleeping bag. | ||
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Pertex® Quantum
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Rab Sleep Limit Explained
Need help choosing the right bag for your next adventure? This is our real-world assessment of a sleeping bag's usable temperature limit. Find out how we arrive at this rating and how you can use it to select your bag.
Rab Sleep Limit Explained
Need help choosing the right bag for your next adventure? This is our real-world assessment of a sleeping bag's usable temperature limit. Find out how we arrive at this rating and how you can use it to select your bag.
Responsible Down Standard
The Responsible Down Standard (RDS) independently certifies down and feathers against animal welfare requirements and tracks it from farm to final product.
Responsible Down Standard
The Responsible Down Standard (RDS) independently certifies down and feathers against animal welfare requirements and tracks it from farm to final product.