Rab

Neutrino -18C/0F Sleeping Bag

$680.00 USD

Only 1 unit left

Size: Long

Sizing: N/A

See Specs tab for Sizing Details

Regular Long

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The definitive cold-weather sanctuary for winter alpine missions.

The Rab Neutrino -18C/0F Sleeping Bag is an essential, high-performance refuge designed for serious mountaineers facing freezing temperatures and harsh winter basecamps. Engineered to deliver exceptional, life-saving warmth without the suffocating bulk and weight of traditional winter bags, it is built for climbers who need to move efficiently but sleep securely in sub-zero conditions. The highly compressible down lofts up instantly after a long day of kicking steps, while the weather-resistant outer shell expertly sheds frost and condensation inside a cramped tent. It perfectly balances packability and absolute thermal protection, making it a mandatory component of your cold-weather sleep system.

Pickup available at Whittaker Mountaineering

Usually ready in 24 hours

Neutrino -18C/0F Sleeping Bag

Long

Whittaker Mountaineering

Pickup available, Usually ready in 24 hours

30027 SR 706 E
Ashford WA 98304
United States

+18002385756

Rab Neutrino -18C/0F Sleeping Bag

$680.00 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

The Rab Neutrino 0F is one of our most trusted cold-weather sleep systems. We recommend it because it provides our guests with absolute, life-saving warmth in sub-zero temperatures without completely dominating the space inside their expedition packs. It is an exceptionally crafted, reliable refuge that ensures you wake up fully recovered and ready to tackle a freezing alpine start.

Details & Features

Ultra-premium 800-fill power European goose down delivers massive loft and reliable, instant warmth in sub-zero alpine environments.
Down is treated with a Grangers fluorocarbon-free hydrophobic finish to retain critical insulation even when exposed to damp tent condensation.
Lightweight Pertex® Quantum outer shell is highly wind-resistant and expertly sheds frost and light moisture.
Chevron baffle construction ensures the down stays perfectly distributed over the core, completely eliminating cold spots during the night.
Ergonomic, close-fitting internal collar and hood feature adjustable drawcords to seal in heat and lock out freezing drafts.
Trapezoidal boxwall construction allows the down to fully loft, maximizing thermal efficiency without adding extra weight.
Anti-snag internal zipper guard ensures smooth, frustration-free venting when you are wearing thick winter gloves.

Specs

Temperature Rating: 0°F (-18°C)
Weight: 2 lbs 13.05 oz (1280 g)
Insulation: 800-Fill Power RDS Certified European Goose Down with Grangers Fluorocarbon-Free Hydrophobic Finish
Shell Fabric: Pertex® Quantum (Recycled Nylon)
Lining: Lightweight Ripstop Nylon
Shape: Alpine Mummy
Sleeping bag length 85 in (Regular) 91 in (Long)
Max user height 73 in (Regular) 79 in (Long)
Internal shoulder girth 63 in (Regular) 64 in (Long)
Internal hip girth 53 in (Regular) 54 in (Long)
Internal foot girth 40 in (Regular) 41 in (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

Winter mountaineering, cold-weather backpacking, and high-altitude basecamps

Activities

Mountaineering
Hiking
Backpacking

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, yet provides just enough room to comfortably stash damp boot liners or gloves at the bottom of the footbox.

What's the diff?

Product Comparison

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Best For

Winter mountaineering, cold-weather backpacking, and high-altitude basecamps

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Activities

Mountaineering
Hiking
Backpacking

—

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, yet provides just enough room to comfortably stash damp boot liners or gloves at the bottom of the footbox.

—

Gear Up

Neutrino -18C/0F Sleeping Bag

The definitive cold-weather sanctuary for winter alpine missions.

Our Take

Rab

Product Comparison

Specs & Materials

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