Lightweight insulation and comfortably soft fleece lining combineto make The North Face Inlux InsulatedJacket one of the most popular insulated layers in this category. The Heatseeker synthetic insulation is famous for its warmth, durability and weight making it ideal for coldweather activites. Whilst the DryVent 2 Layer construction prevents overheating by wicking sweat before it has time to cool. Fully integrated into a technically high performance shell (under-arm vents, comfort cuffs, storm flaps) the Inlux jacket takes alpine clothing to the nextlevel.