Core 2 JacketAs our entry level insulating mid layer, the Core 2 jacket is made to wear underneath practically any REVIT! outer shell that doesnt come with a thermal liner, or to act as an easy slip on, slip off layer insulation. Augmenting your favorite light, warm weather riding jacket to make Summer last that bit longer. Stay warm, stay focused Its highly breathable, lightweight, and easily packable. These three of the Core 2s characteristics work together to