Mammut Biwak Jacket

Where to Buy

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Retailers' Descriptions

Here's what other sites are saying:

When things get really chilly, zip up the Women's Mammut Biwak Down Jacket for the unmatched warmth of 800-fill goose down. The innovative double chamber construction eliminates the cold spots that typically plague down jackets, and Fibrefill body mapping inserts on the back and underarms work to transfer perspiration to where it can evaporate. Adjust the hem and hood for a snug fit, then enjoy the scenery on freezing cold days that would have normally sent you running for shelter.


This jacket is a must for working or playing in cold conditions. Mammut Biwak Jacket intelligently uses down and synthetic insulation in specific parts of the Biwak Jacket to maximize packability, warmth, and moisture management. Complete adjustability through the hood, hem, and cuffs ensure a good fit and minimal heat loss. Perfect for cold weather belays.

- Mountain Gear

The Mammut Biwak Jacket is a hybrid down and fiberfill jacket for alpine and Arctic activities, the perfect combination of heat performance, functionality and performance/volume/weight ratio! Extremely warm, tailored to the temperature zones in the different areas of the body and complete with various adjustment options for a perfect fit. A must for cold days!