There's no way to outlast the weather without the right layering system. Designed to serve as the core of your late-season layering system our Nucleus Heated Vest helps maintain your body's core temperature for you even when temperatures plummet thanks to its adjustable heat settings. The garment includes three heating elements: two across the back and one on the stomach. This vital next-to-skin layer delivers low medium and high options each equipped to preserve your mental fortitude and physical performance. Powered by a single 10000mAh rechargeable battery.