The North Face

Inferno -20F/-29C Sleeping Bag

Guide Pick™ Product

$810.00 USD

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Color: Fiery Red/TNF Black

Fiery Red/TNF Black

Size: Regular

Sizing: N/A

See Specs tab for Sizing Details

Regular Long

Expedition-Ready Warmth for Extreme Cold

The Inferno -20 is The North Face’s warmest expedition bag line for serious cold. Filled with 800-fill ProDown™ that retains loft in damp conditions and protected with a water-repellent shell, it’s built for reliable warmth on big mountains. Draft collars, a fitted hood, and expedition-ready construction make it a trusted partner for nights far below freezing.

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Pickup currently unavailable at Whittaker Mountaineering

Inferno -20F/-29C Sleeping Bag

Fiery Red/TNF Black / Regular

Whittaker Mountaineering

Pickup currently unavailable

30027 SR 706 E
Ashford WA 98304
United States

+18002385756

Guide Pick Product

Diggin' in to Details

Our Take

The Inferno -20 is the bag you want when “cold” isn’t just uncomfortable — it’s dangerous. Lightweight for its warmth, compressible, and expedition-tough, this bag is made for serious climbs and polar expeditions.

Guide Tip: The rating shown on most sleeping bags is the lowest temperature they can handle, not necessarily the temperature at which they're comfortable. A -20 Degree bag like this one will still feel pretty cold at -20, so layer up!

Details & Features

Features

800-fill ProDown™ provides high warmth-to-weight and resists moisture
Shell made with 100% recycled Pertex® Quantum Pro for water resistance
Shaped hood with cinch cords and draft collar to seal in heat
Side half zip with short center zip allows venting and flexibility
Trapezoidal side-chamber baffles prevent down migration
Compression sack and storage sack included

Details

Temperature rating: -20°F (-29°C)
Expedition fit designed for alpine conditions
Unisex sizing (Regular, Long)
Stuff sack and storage sack included

Specs

Specs & Materials

Fill: 800-fill ProDown™
Shell: 100% recycled Pertex® Quantum Pro ripstop
Liner: 100% recycled nylon
Temperature Rating: -20°F (-29°C)
Weight: ~3 lbs 10 oz (Regular)
Shape: Mummy
Colors: Fiery Red/Asphalt Grey
Style: NF0A8CNJ

Sustainability

Shell and liner are made from 100% recycled fabrics. Non-PFC DWR finish avoids harmful chemicals.

Sizing

See Specs tab for Sizing Details

Guide Pick™

Straight From The Source

Why We Love It
Peter Whittaker

Guides choose the Inferno -20 because it’s one of the rare bags that balances expedition-level warmth, weight, and durability. The ProDown™ insulation stays lofted even when conditions turn damp, and the Pertex® Quantum Pro shell keeps out snow and spindrift. On Denali and other high-altitude expeditions, it’s the bag that consistently proves its worth.

“"When it comes to sleeping cold, I always choose Down over Synthetic bags. Down is always lighter than synthetic fill bags, and packs down smaller. Like I always say, "Every ounce counts!"”
— Peter Whittaker, RMI Guide

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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?

The North Face

The North Face builds technical gear trusted on the world’s biggest mountains. We carry them because their expedition equipment balances warmth, weight, and durability for real alpine use.

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Best For

High-altitude expeditions and extreme cold objectives like Denali, Aconcagua, and polar trips.

Summits