Rab Neutrino -12C / 10F

The Rab Neutrino -12C is the definitive choice for the dedicated alpinist or long-distance trekker who demands a high-performance, all-mountain sleeping bag without the weight penalty. Designed for rugged winter ascents and high-altitude adventures, its construction prioritizes durability where it matters most. Rab has utilized a hybrid fabric approach, featuring robust 20D Pertex Quantum on the base and footbox to withstand rough ground, while the top uses a lighter 10D Pertex Quantum. This strategic placement maximizes loft and packability, ensuring the bag survives demanding conditions while remaining impressively lightweight and easy to carry.

Under the hood, this bag is packed with 800FP European goose down, treated with a fluorocarbon-free hydrophobic finish to maintain performance in damp conditions. The Neutrino -12C utilizes the pioneering L.O.F.T 3D™ construction, which employs helix-shaped baffles to eliminate cold spots and prevent down migration. With an ISO limit of -12°C, it offers exceptional warmth for its 1070g weight. Longitudinal chest baffles further enhance thermal efficiency around your core, while the sidewall baffles ensure that side-sleepers remain warm without compressing the down against the seams throughout the freezing alpine night.

Attention to detail defines the Neutrino -12C, featuring a tapered mummy shape and an anatomically shaped footbox for a natural sleeping position. The cinchable hood and down-filled collar seal in heat, while internal cordlocks are positioned to avoid irritation. A two-way YKK zip with an anti-snag guard allows for easy ventilation, protected by an insulated baffle to block drafts. Hand-filled in Derbyshire to ensure maximum loft, the bag comes complete with a lightweight dry bag for the trail and a zipped storage sack for home, making it a comprehensive, professional-grade alpine sleep system.

Rab Neutrino -12°C Features

• 10D Pertex® Quantum ripstop
• 20D Pertex® Quantum on the base and footbox
• 800FP European goose down with Grangers fluorocarbon-free hydrophobic finish
• Longitudinal chest baffles
• Sleep comfortably on your side thanks to the sidewall baffles
• Cinch in hood
• Two-way zip
• Insulated zip baffle
• YKK® anti-snag zip insert and anti-snag internal zip guard
• Anatomically shaped foot box
• Lightweight dry bag compression stuff sack
• Zipped storage sack with water-resistant base
• Tapered mummy shape
• Hand-filled in Derbyshire UK