Chase away the cold with the Spyder Leader Graphene Insulator Jacket. The 360º stretch smooth face power fleece is perfect under your shell on a cold day or on its own on a beautiful bluebird day. Graphene heat conduction technology spreads your body heat from warm areas to colder areas to avoid overheating and for faster warming. Slip it on to see how comfortable and effective the Leader Graphene jacket in a variety of conditions.