The Rab Neutrino Down Sleeping Bag (-18°C) is what you need when there are endless alpine landscapes waiting to be explored, and this is the sleeping bag to get you there. Offering outstanding warmth for weight with a robust, all-mountain design, it’s a versatile bag that easily adapts to a range of alpine pursuits, from high-altitude treks to rugged winter ascents. We’ve strategically placed fabrics to give you maximum durability and loft where you need them, creating a hardwearing, hardworking bag that’s nonetheless super packable and lightweight. Filled with 800FP down in our groundbreaking L.O.F.T 3D™ baffle construction, which eliminates cold spots, it provides the efficient warmth you need for technical pursuits on alpine terrain.
Hand-filled in the UK, all Rab's down bags benefit from never having had their down compressed before use, preserving its loft and warmth.
Rab Neutrino Down Sleeping Bag (-18°C) Features:
- Longitudinal chest baffles provide an efficient way of conserving heat around your torso.
- Pioneering L.O.F.T 3D™ construction features helix-shaped baffles that prevent down migration and maximise heat retention.
- 20D Pertex® Quantum on the base and footbox for durability on rough ground, while 10D Pertex® Quantum on the top increases loft and packability.
- Sleep comfortably on your side thanks to the sidewall baffles, which reduce cold spots and ensure you’re not lying on a seam.
- Cinch in the hood to seal in the heat, while the down-filled collar sits snugly around your neck.
- Two-way zip provides ventilation when you need it, while the insulated zip baffle prevents cold spots when the temperature drops.
- Internal cord locks positioned below your collarbone for greater side sleeping comfort.
- YKK® anti-snag zip insert and anti-snag internal zip guard.
- Anatomically shaped foot box allows you to sleep in a relaxed position.
- Lightweight dry bag compression stuff sack.
- Zipped storage sack with water-resistant base for home storage.
- Hand-filled in Derbyshire, UK.
- Tapered mummy shape.
Rab Neutrino Down Sleeping Bag (-18°C) Specifications:
- Weight - 1280g/2lb 13.15oz
- Insulation - 800FP European goose down with Grangers fluorocarbon-free hydrophobic finish (800g / 28.2oz)
- Main fabric - 10D Pertex® Quantum ripstop (26g/m²) with fluorocarbon-free DWR
- Secondary fabric - 20D Pertex® Quantum ripstop (38gsm) with fluorocarbon-free DWR
- Fabric lining - Lining: Recycled 20D nylon, 38g/m²
- ISO (23537-1:2022) temperature rating - Comfort: -10°C (14°F), Limit of comfort: -18°C (0°F), Extreme: -40°C (-40°F)
- Limit of Comfort - -18°C / 0°F
- Packed size - 22cm x 40cm (8.7in x 15.8in)
We aim to ship out all orders placed before 2pm the same working day! For shipments in the United Kingdom mainland, we use Royal Mail Tracked 24 service (DPD Next Day for larger items and items that weigh over 4KG). Please see our shipping policy for more details.
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