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Alpine Down Winter Sleeping Bag (-5°F & -40°F)

Alpine Down Winter Sleeping Bag (-5°F & -40°F)

$649.00-$899.00
Designed for artic conditions+ View tech specs
Temp Rating
Size
QTY:
Highlights

BEST USE: Mountaineering

PERFORMANCE: 4 Season

WEIGHT: 2lbs 15oz | 1340g

COMPRESSED VOLUME: 9.3 liters

Shipping & Returns

Our warehouse is actively shipping orders from 8am to 1pm MST Monday through Friday. Most orders ship in one business day, but the transit time can take up to 7 days, depending on your distance from Boulder, Colorado.

2nd Day and Next Day Air orders will ship same day if placed by 1pm MST, Monday-Friday (except holidays).

All orders are eligible for fast and easy returns within 60 days of purchase.

For more details, please check out our Help Center

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-5°F || Alpine Down Winter Sleeping Bag
Alpine Down Winter Sleeping Bag (-5°F & -40°F)
$649.00-$899.00
Description || Alpine Down Winter Sleeping Bag

Description

The Alpine down mummy sleeping bag is designed for the rarefied world of high-altitude and arctic conditions. It features cutting-edge materials, the highest quality Ultra-Dry down, and complex construction. Expedition mummy sizing allows you to wear extra clothing, and boot liners inside the bag.

If you are going above or beyond, the Alpine is the bag you will want to take with you.

Design Details

TECHNICAL FEATURES

NANO SHELL
850+ LOFT ULTRA-DRY DOWN
RESPONSIBLE DOWN STANDARD (RDS)
FREE FLOW ZIP

Tech specs

  • Best Use
    Mountaineering
  • Comes With
    Ultra-Sil Compression Sack & Storage Cube
  • Insulation
    Ultra-Dry Down 850+ Loft
  • Season Rating
    Winter/Extreme
  • Shape
    Mummy
  • Shell Fabric
    Water repellent NanoShell
  • Zip Options
    Free-Flow zipper system
RegularLong
-5°F Regular-5°F Long-40°F Regular-40°F Long

Frequently Asked questions

A good choice for occasional cold-weather use?

Yes. The Alpine -40°'s high-lofting down, technical hood, oversized draft tubs, and draft collar work well in really cold weather. The Alpine -5°F is designed for the extreme cold of alpine expedition use. Occasional cold-weather users might look at an Ascent/Altitude or the ultralight Spark/Flame as an alternative.

Suitable for bivvies?

Yes. The NanoShell shell fabric is windproof and highly water-resistant – it will protect the Ultra-Dry Down from external moisture.

Able to be zipped to another sleeping bag?

No. The Alpine is not designed to be zipped to another bag.