Rab Neutrino -12°C Wmns Sleeping Bag | Women's Down Sleeping Bag for Mountaineering and Mountain Climbing

Description

The Rab Neutrino -12°C Wmns is a high-performance down sleeping bag designed for women, engineered to offer an excellent balance of warmth, weight, and compressibility for mountain activities where every gram counts.

Featuring 800FP European goose down, L.O.F.T 3D™ construction, and strategically distributed Pertex® Quantum fabrics, it is an ideal choice for alpine trekking, technical bivouacs, and ascents in cold conditions where serious insulation is needed without adding excessive bulk to your pack.

Real technical performance

Within the Neutrino family, this women-specific model is designed for cold 3-4 season outings and winter mountaineering, where the balance between thermal protection and lightness is decisive.

The L.O.F.T 3D™ construction helps reduce down migration and improves thermal efficiency, while the combination of 20D Pertex® Quantum on the base and footbox and 10D Pertex® Quantum on the upper section reinforces durability in high-exposure areas without sacrificing the overall compressibility and weight.

The women-specific pattern and mummy shape help optimize heat retention, while the thermal collar, anatomical hood, and zipper baffle limit heat loss on truly cold nights.

Technical specifications

• Weight: 1050 g
• Fill: 800FP European goose down with fluorocarbon-free hydrophobic finish
• Down quantity: 600 g
• Main outer fabric: 10D Pertex® Quantum ripstop (26 g/m²) with fluorocarbon-free DWR
• Secondary outer fabric: 20D Pertex® Quantum ripstop (38 g/m²) with fluorocarbon-free DWR
• Lining: 20D recycled nylon, 38 g/m²
• Comfort temperature: -5°C
• Limit temperature: -12°C
• Extreme temperature: -33°C
• Packed size: 20 x 35 cm
• Construction: L.O.F.T 3D™
• Shape: Women's tapered mummy fit

Range comparison

The Neutrino 0°C is aimed at milder outings and summer alpine use. The Neutrino -6°C expands versatility for cold spring, high altitude, and alpine trekking. This Neutrino -12°C Wmns clearly raises the thermal bar and is positioned for cold conditions, serious bivouacs, and light winter mountaineering, while maintaining a reasonable weight and volume format.

Compared to the Mythic range, the Neutrino prioritizes a slightly more robust and versatile design. Compared to the Alpine or Ascent range, it offers a more technical construction, a better warmth-to-weight ratio, and a more distinctly alpine focus.

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

Recommended use

• Alpinism and winter mountaineering
• Alpine trekking in cold conditions
• Technical 3-4 season bivouac
• Ascents where weight and volume are critical

Is it for you?

Yes, if you are looking for a technical down sleeping bag for women with an excellent warmth-to-weight and compressibility ratio.

Yes, if you do cold-weather mountaineering, alpine bivouacking, or demanding trekking and need a more serious model than a mid-season bag.

No, if your primary use is summer or hut-to-hut trips. In that case, the milder Neutrino models or ranges more oriented towards general trekking would be a better fit.