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Rab

Neutrino -6C/20F Sleeping Bag

$500.00 USD

Only 1 unit left

Size: Regular

Sizing: N/A

See Specs tab for Sizing Details

Regular Long

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The definitive three-season sanctuary for fast-paced alpine missions.

The Rab Neutrino -6C/20F Sleeping Bag is the ultimate versatile refuge for alpine climbers and backpackers moving fast through unpredictable three-season conditions. Designed to offer crucial overnight warmth without bogging down your pack, it features highly compressible, premium down that lofts up instantly after a long day on the glacier. Its weather-resistant shell expertly handles damp tent condensation and brisk alpine air, ensuring your insulation stays completely effective when the temperature drops at camp. From summer summits in the Cascades to crisp shoulder-season bivies, it strikes the perfect balance of packability, weight, and uncompromising mountain comfort.

Pickup available at Whittaker Mountaineering

Usually ready in 24 hours

Neutrino -6C/20F Sleeping Bag

Regular

Whittaker Mountaineering

Pickup available, Usually ready in 24 hours

30027 SR 706 E
Ashford WA 98304
United States

+18002385756

Rab Neutrino -6C/20F Sleeping Bag

$500.00 USD

Free Shipping

On orders over $150

Expert Guidance

Real mountain guides, not algorithms

Easy Returns

30 days, no hassle returns

Guide Vetted

Curated by RMI professionals

Diggin' in to Details

Our Take

We recommend this bag to any climber because it offers the exact amount of highly compressible warmth needed for summer climbs on Mount Rainier, without eating up crucial space in an expedition pack. It is an incredibly reliable, meticulously crafted sleep system that guarantees you wake up rested and ready for a grueling alpine start.

Details & Features

Ultra-premium 800-fill power European goose down delivers exceptional loft and reliable warmth for three-season alpine environments.
Down is treated with a Granger fluorocarbon-free hydrophobic finish to resist moisture and retain critical warmth during damp, foggy bivies.
Lightweight Pertex® Quantum outer shell is highly wind-resistant and expertly sheds tent condensation and light frost.
Weight-saving chevron baffle construction keeps the down perfectly distributed over your core, entirely eliminating cold spots.
Ergonomic, close-fitting internal collar and hood effectively seal in body heat and lock out frigid mountain drafts.
Trapezoidal boxwall construction allows the down to fully loft, maximizing thermal efficiency without adding extra bulk to your pack.
Anti-snag internal zipper guard ensures smooth, frustration-free venting during warmer nights at lower elevations.

Specs

Temperature Rating: 20°F (-6°C)
Weight: 1 lb 14.69 oz (870 g)
Insulation: 800-Fill Power RDS Certified European Goose Down with Nikwax Fluorocarbon-Free Hydrophobic Finish
Shell Fabric: 10D Pertex® Quantum ripstop (26g/m²) with fluorocarbon-free DWR
Lining: Recycled 20D nylon, 38g/m²
Shape: Alpine Mummy
Sleeping bag length 215cm (Regular) 230cm (Long)
Max user height 185cm (Regular) 200cm (Long)
Internal shoulder girth 160cm (Regular) 162cm (Long)
Internal hip girth 134cm (Regular) 136cm (Long)
Internal foot girth 102cm (Regular) 104cm (Long)

Sizing

See Specs tab for Sizing Details

Our Philosophy

We Simplify Outfitting

Whittaker Mountaineering was born out of the need for RMI to make sure their clients had the appropriate gear to get to the top of Mt. Rainier safely. After decades of trying, reviewing, arguing-over, and recommending gear, we can’t help but know what we’re doing by this point. We know what works, we know what doesn’t, and we use that expertise to stock our store.

Who are these guys?

Rab

Rab earned their reputation as "The Mountain People" by designing gear in the rugged peaks of Sheffield, UK, where foul weather is the norm. We stock them at Whittaker Mountaineering because their no-nonsense approach to alpinism aligns perfectly with the needs of our customers. They prioritize high-performance fabrics and honest construction over trends, delivering equipment that provides reliable protection when conditions on the mountain turn critical.

See More From Rab

Best For

Mountaineering, three-season backpacking, and alpine climbing

Activities

Mountaineering
Backpacking
Camping

Fit

Designed with Rab's specific "Alpine Mummy" taper, this bag minimizes dead air space to maximize thermal efficiency. It fits close to the body for rapid heat retention, effectively warming up quickly without excess, heat-sapping bulk around the torso or legs.

What's the diff?

Product Comparison

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Best For

Mountaineering, three-season backpacking, and alpine climbing

Fast-and-light alpine climbing, ultralight backpacking, mountain marathons, and summer alpine bivies.

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Activities

Mountaineering
Backpacking
Camping

Mountaineering
Backpacking
Camping

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Fit

Designed with Rab's specific "Alpine Mummy" taper, this bag minimizes dead air space to maximize thermal efficiency. It fits close to the body for rapid heat retention, effectively warming up quickly without excess, heat-sapping bulk around the torso or legs.

Designed with a highly efficient, weight-saving mummy taper to minimize dead air space and maximize thermal efficiency. The streamlined cut is explicitly intended to fit close to the body, ensuring rapid heat retention without any excess, heat-sapping bulk.

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Gear Up

Neutrino -6C/20F Sleeping Bag

The definitive three-season sanctuary for fast-paced alpine missions.

Our Take

Rab

Product Comparison

Specs & Materials

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