Running in winter conditions is challenging. Maintaining comfort for optimal performance in cold and wet environments requires protection from all the elements. The Norvan SL Insulated Hoody is a minimalist, superlight, packable jacket for running in the inclement weather of winter. GORE-TEX SHAKEDRY product technology eliminates the need for a face fabric and does not require DWR treatments. Arc'teryx designers developed innovative design solutions to insulate the jacket with highly breathable and packable Coreloft Compact 40 insulation. The Dope Permeair 20 liner allows excess heat to escape and manages moisture.