Rab · Sleeping Gear

Neutrino Pro 500 Down Sleeping Bag -9C / 15F

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$452.00

$619.99Save $167.99 (27%)

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About this product

The Rab Neutrino Pro 500 is a high-performance mummy sleeping bag engineered for mountaineering, multi-day trekking, and fast-and-light alpine adventures. It carries a Rab sleep limit of -9°C (15°F), with ISO EN 13537:2012 ratings of 0°C comfort, -6°C limit, and -24°C extreme. The fill is 500g of 800-fill-power, RDS-certified European goose down treated with a Nikwax fluorocarbon-free hydrophobic finish to resist moisture in damp or snowy conditions. The outer shell is 20D Pertex Quantum Pro recycled nylon ripstop (40gsm) with a fluorocarbon-free DWR coating, while the lining uses 20D recycled nylon (38gsm). Chevron-shaped baffles reduce fabric use and limit down migration, and trapezoidal boxwall construction with a differential cut allows full loft with no cold spots. A synthetic-filled zip baffle, adjustable neck baffle, and elasticated hood drawcord all minimize heat loss. The bag packs to 35x23cm and weighs 915g (Regular) or 1,005g (XL). Hand-filled in the UK, it ships with a waterproof roll-top compression sack and a zipped cotton storage sack.

Category: Sleeping Gear
Brand: Rab
Material: 100% Recycled Polyamide With Polyurethane Coating, Lining: 100% Recycled Polyamide, 20D Recycled Nylon(38gsm)
Color: Colour: Granite
Size: 35x23cm/13.8x9.1in
Main: 100% Recycled Polyamide With Polyurethane Coating
Lining: 100% Recycled Polyamide, 20D Recycled Nylon(38gsm)
Weight: (Reg)915g/32.3oz, (XL)1005g/35.5oz
En(13537: 2012)Temperature rating: ISO EN: Comfort: 0°C(32°F), Limit: -6°C(21°F), Extreme: -24°C(-11°F)
Pack Size: 35x23cm/13.8x9.1in
Activities: Mountaineering, Multi-day Trekking, Fast & Light Adventures

What people are saying

Reviewers consistently praise the Rab Neutrino Pro 500 for its excellent warmth-to-weight ratio, high-quality 800-fill-power down, and the weather-resistant combination of Nikwax-treated hydrophobic down and Pertex Quantum Pro shell, which gives it a durable, damp-shedding feel well suited to alpine bivouacs and exposed conditions. The user-friendly hood toggles, no-catch zip, and thoughtful baffle design are frequently highlighted as refined, practical details. The most common criticism is the premium price, which sits at the upper end of its warmth category. The extremely narrow mummy cut, while thermally efficient, is noted as a trade-off that may feel restrictive for those who move around while sleeping. Cold sleepers are also advised to treat the temperature rating conservatively.