Filled with 800FP goose down and covered with a recycled, wind resistant Pertex® Quantum outer. For the alpinist looking for a lightweight, low bulk bag suitable for cold temperatures, the Neutrino 400 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 three season mountain missions.

The Neutrino 400 is filled with 400g 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.

Features

Weight:(Regular) 775g/27.3oz, (Long) 835g/29.5oz, (Wide) 835g/29.5oz, (Long Wide) 895g/31.6oz
Insulation:800FP European Goose Down with Nikwax Fluorocarbon-Free Hydrophobic Finish (400g / 14.1oz)
Rab Sleep Limit:19°F / -7°C
Packed Size:13.8in x 9in (35cm x 23cm)
Product Code:QSM-90
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 (400g / 14.1oz)
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

Activities

Fast & Light Adventures
Mountaineering
Trekking

Material Facts

Total Recycled Content*	43%
Fabric	100%
Outer	100%
Liner	100%
Hydrophobic Down	0%
Zips	39%
Trims	8%

Neutrino 400 Down Sleeping Bag (19°F)

Q & A