Featuring high-performance RDS-Certified duck down hybrid jacket delivers excellent insulation performance.This Men's walking coat weighs hardly anything and has a pleasant, natural feel against the skin. The Zenon Storm is very compressible and takes up very little space in your backpack. To add strength to the areas that are subjected to pressure from backpack straps or most exposed to snow and rain, like the sleeves, shoulders and hood, Jack Wolfskin have used their own innovative synthetic fibre insulation. MICROGUARD MAXLOFT Q.M.C is comparable to down in terms of performance but is less sensitive to moisture, warm even when wet and fast wicking. The windproof STORMLOCK fabric makes the jacket even warmer.