Rab Neutrino -6C / 20F Wmns Sleeping Bag | Women's Down Sleeping Bag for Alpine Trekking

Description

The Rab Neutrino -6C / 20F Wmns is a down sleeping bag designed for women, geared toward light alpinism, high-altitude trekking, and expeditions where every gram counts, without sacrificing serious thermal protection. Within the Neutrino family, it represents a very solid balance between warmth, compressibility, and real-world mountain use.

Its 800FP European goose down fill, L.O.F.T. 3D™ construction, and strategic use of Pertex® Quantum and Pertex® Quantum Pro fabrics make for a highly compact, technically advanced sleeping bag ready for long three-season cold conditions or alpine environments in spring and autumn.

Real-world technical performance

The Neutrino -6C Wmns is designed for moving fast in the mountains with a lightweight backpack, where volume and weight matter as much as the ability to retain heat during cold nights. The L.O.F.T. 3D™ construction uses chevron-shaped baffles to minimize cold spots and improve down stability, while longitudinal chest baffles increase thermal efficiency in the core area.

The base and footbox incorporate 20D Pertex® Quantum Pro to provide extra durability and protection against moisture in the most exposed areas, while the 10D Pertex® Quantum fabric on the upper improves loft and reduces weight. The women's-specific fit helps optimize internal volume and improve thermal efficiency without creating excess dead space.

Technical specifications

• Weight: 850 g / 1 lb 13.98 oz
• Fill: 800FP European goose down with Grangers fluorocarbon-free hydrophobic finish (400 g / 14.1 oz)
• Main fabric: 10D Pertex® Quantum ripstop nylon (26 g/m²) with fluorocarbon-free DWR
• Secondary fabric: 20D Pertex® Quantum ripstop nylon (38 g/m²) with fluorocarbon-free DWR
• Lining: Recycled 20D nylon, 38 g/m²
• Comfort temperature: 0°C / 32°F
• Limit temperature: -6°C / 21°F
• Extreme temperature: -24°C / -11°F
• Packed size: 18 cm x 30 cm (7.1 in x 11.8 in)
• Product code: QSN-17

Comparative range analysis

Compared to the Neutrino 0C, this model adds a clear boost in thermal security for colder nights and mid-season alpine climbs. Compared to the Neutrino -12C Wmns, it maintains a more versatile, less extreme profile, with a better balance for trekking and technical mountaineering without overloading your pack.

Compared to the Mythic Ultra range, the Neutrino prioritizes a more robust combination of durability, protection, and versatility. Against a synthetic bag like the Radeon, it offers better compressibility and a superior warmth-to-weight ratio, though it requires slightly more careful handling in persistently damp environments.

You can also compare: Rab Neutrino -12°C Wmns Sleeping Bag · Rab Neutrino -6C / 20F Sleeping Bag · Rab Neutrino range.

Recommended use

• Alpine trekking and mid- to high-mountain expeditions
• Bivouacs and camping in spring, autumn, and summer at altitude
• Light alpinism where reducing weight and volume is critical
• Users looking for a serious, versatile down bag within the Rab technical range

Is it for you?

Yes, if you are looking for a technical women's down bag with a great balance of warmth, weight, and compressibility. Yes, if you go trekking and need a reliable model for cold nights without stepping up to a full-blown winter bag. No, if your priority is worry-free use in very damp environments or highly variable campsites; in that case, a synthetic option might be a better fit. No, if you need maximum insulation for severe winter conditions, where it is better to move up to a warmer Neutrino.