This is a 100% box baffled parka, filled with premium 900 fill power high-lofting goose down. The Dermizax Ultralight 3-layer shell fabric is waterproof, windproof and very durable. It has an oversized expedition fit with an elongated back piece and an extremely generous hood. At only 930g in size medium, it has an impressive warmth-to-weight-ratio.
This is a seriously warm parka. Besides real-world testing in extreme conditions, we took this parka to the advanced Toray lab in Japan to verify its performance. During extended periods of low-pulse activity, wearing a thin base-layer and a Stellar Mid Jacket under the parka, the test subjects repeatedly overheated in a controlled environment holding -30°C.