Norrøna Lyngen Alpha90 Women's Fleece Jacket 2025This extremely lightweight fleece jacket is developed for ski touring, but is also great for general outdoor activities, especially mid to high intensity, due to its excellent breathing and insulation properties. The jacket is made in two premium fleece fabrics: Polartec Alpha and the lightest warm1. The Alpha provides excellent insulation and breathability, and the warm1 pulls moisture from the skin and transfers it to the outer surface to dissipate