Jack Wolfskin’s Argon Storm Jacket boasts a newer and robust version of weather protection technology, TEXAPORE O2+ DOBBY. This provides a reliable barrier to the weather, even in persistent rain and blizzard conditions. The warmth comes from the MICROGUARD SUPERLOFT fill, a moisture resistant insulation material designed to perform in sub-zero temperatures. The synthetic fibre insulation feels like down, has excellent lofting capabilities, and delivers very good warmth-to-weight performance.