For reliable warmth on winter trails. The Women's Helium Stardust Jacket is a super lightweight classic down jacket. Jack Wolfskin have used a thin yet tear-resistant, windproof outer fabric. And incorporated a high quality duck down fill. This makes the jacket very light and ensures you stay warm.
And when you no longer need all that warmth, the Stow Away function is very practical feature. Simply stuff the jacket into its own hip pocket and you have a compact bundle that takes up minimal space in your pack.