Neutrino 400 Down Sleeping Bag (-7C)

£420.00

Size and shape guide

Shape: Tapered Mummy

Size guide

Shape guide

Dimensions

Metric (cm)

Imperial (in)

Measurements	Regular	Long	Wide	Long wide
Sleeping bag length	215cm	230cm	215cm	230cm
Max user height	185cm	200cm	185cm	200cm
Internal shoulder girth	160cm	162cm	180cm	182cm
Internal hip girth	134cm	136cm	146cm	148cm
Internal foot girth	102cm	104cm	110cm	112cm
Pack size	35cm x 23cm	35cm x 23cm	35cm x 23cm	35cm x 23cm

Measurements	Regular	Long	Wide	Long wide
Sleeping bag length	84.6 in	90.6 in	84.6 in	90.6 in
Max user height	72.8 in	78.7 in	72.8 in	78.7 in
Internal shoulder girth	63.0 in	63.8 in	70.9 in	71.7 in
Internal hip girth	52.8 in	53.5 in	57.5 in	58.3 in
Internal foot girth	40.2 in	40.9 in	43.3 in	44.1 in
Pack size	13.8 in x 9 in	13.8 in x 9 in	13.8 in x 9 in	13.8 in x 9 in

Tapered Mummy

The narrowest of our bags, it eliminates ‘dead space’ making it as thermally efficient as possible. This cut generally means that the bag rolls with you while you sleep. Although compromising on space, this shape will maximise performance and keep pack size and weight to a minimum.

Info
Delivery and returns Delivery
Rab Promise

Eliminating excess bulk with a highly tapered design and offering exceptional warmth for its weight, this bag is built for fast and light mountain missions. Filled with 800FP goose down and covered with a recycled, wind resistant outer.

Activities

Fast & light adventures
Mountaineering
Trekking

Key benefits

Very low pack size
Very light

Delivery

All UK orders are shipped free of charge by DPD.

DPD local pickup available - over 10,000+ locations.

Orders placed during the week and before midday will typically be delivered within 48 hours, orders placed on weekends will ship on the following Monday.

For more information, please visit our delivery page.

Returns

If you are unhappy with your purchase, please return it to us within 45 days of receipt. The item(s) must be in resalable condition with tags attached. We are currently unable to exchange items and will refund products returned to us under the policy below.

For more information, please visit our returns page.

This unique guarantee promises to support you before, during and after your adventure, combining gear advice, aftercare services, and our Rab Warranty, to help you get more out of your gear.

For more information, please visit our Rab Promise page.

Features

Weight(Regular) 775g/27.3oz, (Long) 835g/29.5oz, (Wide) 835g/29.5oz, (Long Wide) 895g/31.6oz
Insulation800FP European Goose Down with Nikwax Fluorocarbon-Free Hydrophobic Finish (400g / 14.1oz)
EN (13537:2012) temperature ratingISO EN: Comfort: -1°C (30°F), Limit: -7°C (19°F), Extreme: -25°C (-13°F)
Rab sleep limit-7°C / 19°F
Packed size35cm x 23cm (13.8in x 9in)
Product codeQSM-90

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.

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

Material Facts

Neutrino 400 Down Sleeping Bag (-7C)

	Recycled	PFAS PFAS This column shows where fluorocarbons (PFAS) may still be present in our products. No PFAS means we’ve phased out all intentionally added PFAS from the corresponding component and are compliant with current EU and US legislation.
Total content Total content The total percentage of an item's weight that is recycled.	43%	No
Fabric Fabric Some of our products use multiple fabrics, especially waterproof items. This figure shows the total percentage of an item's fabrics which are recycled, calculated by weight.	100%	No
Outer	100%	No
Liner	100%	No
Hydrophobic down	0%	No
Zips Zips This figure includes zipper tape, teeth, sliders, and pullers, showing their total recycled content by weight.	39%	No
Trims Trims This section shows the recycled content by weight for all components added to our products that are not captured in the other categories. For example, cord locks, pocket linings, buttons, cords, size labels, and eyelets.	8%	No
Renewable energy
Product manufacturing	64%
Manufactured in United Kingdom
*Calculations based upon the weight of a regular length sleeping bag.
QSM-90 Version 03/2024

Material Facts is the way forward.

We’re helping you to make informed choices by giving you the raw data. Clear. Concise. Honest.

Learn More

Tech and features.

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
Insulation800FP European Goose Down with Nikwax Fluorocarbon-Free Hydrophobic Finish (400g / 14.1oz)
EN (13537:2012) temperature ratingISO EN: Comfort: -1°C (30°F), Limit: -7°C (19°F), Extreme: -25°C (-13°F)
Rab sleep limit-7°C / 19°F
Packed size35cm x 23cm (13.8in x 9in)
Product codeQSM-90

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.

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