Lightweight insulation for demanding hiking trips. The Women's Zenon Track Jacket delivers warmth without weight. This is because the fill in this hybrid jacket is predominantly high-grade duck down with good lofting capability. For the shoulders, sleeves and hood Jack Wolfskin have opted for a less sensitive and more robust Fibercloud synthetic fill. It retains its insulation performance even when damp or when pressure is exerted on it. The Stormlock outer fabric also gives you good protection from the wind.The jacket is equipped with a System Zip, so you can simply zip it into a compatible weatherproof shell jacket as a very warm liner.The jacket stows neatly inside its own hip pocket. Because it is made from lightweight materials, the Women's Zenon Track Jacket takes up very little space in your pack, which makes it a practical insulation solution for all situations.