The IconX Heated Core Long Sleeve Shirt delivers warmth right where you need it. Low-profile carbon-fiber heating elements reduce bulk while providing maximum heat output in cold conditions. With 3 heat settings and NEXT-TO-SKIN(TM) design, our revolutionary easy-to-layer technology allows you to fully customize your level of protection. Powerpack Charger and Battery included, a $55 value! How to Use Heated Core How to Care for Heated Core